BYW6223机价格(byw36参数)
byw36参数
用大功率的快恢复管也可:RU3A , RU4YX, BYW36等
byw36v参数以及代换
BYW36V是正向电流2A反向电压600V快速二极管。
byw32
给定至少两个随机变量X,Y,…, 它们的联合概率分布(Joint probability distribution)指的是每一个随机变量的值落入特定范围或者离散点集合内的概率. 对于只有两个随机变量的情况, 称为二元分布(bivariate distribution).
联合概率分布可以使用联合累计分布函数(joint cumulative distribution function), 连续随机变量的联合概率密度函数(joint probability density function)或者离散变量的联合概率质量函数(joint probability mass function)来描述. 由此又衍生出两个概念: 边缘分布(marginal distribution)和条件概率分布(conditional probability distribution).
二. 离散变量的联合概率质量函数公式
公式:
是给定X=xX=x的Y=yY=y的条件概率.
而且有:
如果XX和YY相互独立:
如果XX和YY条件不独立(conditionally dependent):
P(X=x and Y=y)=P(X=x)⋅P(Y=y|X=x)P(X=x and Y=y)=P(X=x)·P(Y=y|X=x)
也可以使用联合累计分布函数的差分来计算:
联合累计分布函数定义是:
所以F(x,y)F(x,y)的导数(差分)就是P(X=x and Y=y)P(X=x and Y=y)
三. 使用Matlab计算离散2D联合分布
参考: Calculating a 2D joint probability distribution
离散2D联合分布可用于计算两张图片的互信息MI.
0. 定义两个离散的随机变量.
有N个点分布在边长为1的正方形区域内. 把正方形分为K1*K2的小矩形. 统计每个小矩形内的点的个数.
% Data
N = 1e5; % number of points
xy = rand(N, 2); % coordinates of points
xy(randi(2*N, 100, 1)) = 0; % add some points on one side
xy(randi(2*N, 100, 1)) = 1; % add some points on the other side
xy(randi(N, 100, 1), :) = 0; % add some points on one corner
xy(randi(N, 100, 1), :) = 1; % add some points on one corner
inds= unique(randi(N, 100, 1));
xy(inds, :) = repmat([0 1], numel(inds), 1); % add some points on one corner
inds= unique(randi(N, 100, 1));
xy(inds, :) = repmat([1 0], numel(inds), 1); % add some points on one corner
% Intervals for rectangles
K1 = ceil(sqrt(N/5)); % number of intervals along x
K2 = K1; % number of intervals along y
int_x = [0:(1 / K1):1]; % intervals along x
int_y = [0:(1 / K2):1]; % intervals along y
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
1. 从定义出发, 使用for循环:
tic
count_cells = zeros(K1, K2);
for k1 = 1:K1
inds1 = (xy(:, 1) >= int_x(k1)) & (xy(:, 1) < int_x(k1 + 1));
for k2 = 1:K2
inds2 = (xy(:, 2) >= int_y(k2)) & (xy(:, 2) < int_y(k2 + 1));
count_cells(k1, k2) = sum(inds1 .* inds2);% 布尔相乘得到交集点的个数
end
end
toc
% Elapsed time is 39.357691 seconds.
1
2
3
4
5
6
7
8
9
10
11
1
2
3
4
5
6
7
8
9
10
11
可见使用两重循环的计算时间非常长.
2. 使用hist3函数
N=hist3(X,'Edges',edges)是matlab中专门计算二元分布的函数.
edges是包含两个递增array的cell. 第一维分组edge1是edges{1}, 第二维分组edge2是edges{2}.
也就是:
edges1(i)<=X(k,1)<edges1(i+1)edges1(i)<=X(k,1)<edges1(i+1)
edges2(j)<=X(k,2)<edges2(j+1)edges2(j)<=X(k,2)<edges2(j+1)
正好落在edges1(i+1)edges1(i+1)或者edges2(j+1)edges2(j+1)上的点的个数放在N的最后一行或者最后一列.
hist3不统计edges范围外的部分.
N是一个二维矩阵, 统计的落到每个单元格内的点的个数.
tic
count_cells_hist = hist3(xy, 'Edges', {int_x int_y});
% 注意hist3得到的矩阵是K1+1*K2+1的, 所以把最后一行和一列去掉.
% 最后一行或一列表示的是 X(k,1)= edges{1}(end)或者X(k,2) = edges{2}(end)的点数
count_cells_hist(end, :) = []; count_cells_hist(:, end) = [];
toc
all(count_cells(:) == count_cells_hist(:))
% Elapsed time is 0.017995 seconds.
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
显然比用两重for循环快多了.
3. 使用矩阵二元操作bsxfun
C = bsxfun(fun,A,B)对A和B做逐个元素的二元操作, 操作由函数 fun指定.
返回的C中, 1表示满足条件, 0 表示不满足条件. 可用的fun有:
fun operation
@plus Plus
@minus Minus
@timesArray multiply
@rdivideRight array divide
@ldivideLeft array divide
@power Array power
@max Binary maximum
@min Binary minimum
@rem Remainder after division
@mod Modulus after division
@atan2 Four-quadrant inverse tangent; result in radians
@atan2d Four-quadrant inverse tangent; result in degrees
@hypot Square root of sum of squares
@eq Equal
@neNot equal
@ltLess than
@le Less than or equal to
@gt Greater than
@ge Greater than or equal to
@andElement-wise logical AND
@orElement-wise logical OR
@xorLogical exclusive OR
使用bsxfun的matlab代码:
%% bsxfun
tic
xcomps = single(bsxfun(@ge,xy(:,1),int_x));% 10000*143矩阵
ycomps = single(bsxfun(@ge,xy(:,2),int_y));% 10000*143矩阵
% 相当于求CDF
count_again = xcomps.' * ycomps; %' 143x143 = 143x1e5 * 1e5x143
% 差分后是142*142
count_again_fix = diff(diff(count_again')');
toc
% Elapsed time is 0.178316 seconds.
all(count_cells_hist(:) == count_again_fix(:))
1
2
3
4
5
6
7
8
9
10
11
1
2
3
4
5
6
7
8
9
10
11
bsxfun稍逊于hist3, 可以针对没有statistics toolbox的情况下使用.
4. 使用accumarray
A= accumarray(subs,val)使用subs的元素值作为索引. subs和val是一一对应的. 将subs中相同值对应的val值累加. 也就是说, subs中元素的位置决定了val哪些元素相加, subs中元素的值决定了累加值在输出中的位置. 看matlab help中示例:
Example 1
Create a 5-by-1 vector and sum values for repeated 1-D subscripts:
val = 101:105;
subs = [1; 2; 4; 2; 4];
A = accumarray(subs, val)
A =
101 % A(1) = val(1) = 101
206 % A(2) = val(2)+val(4) = 102+104 = 206
0 % A(3) = 0
208 % A(4) = val(3)+val(5) = 103+105 = 208
subs中元素值必须是正整数值. 所以在表示分组时, 可以把[0,1]区间变为[1,K1]区间. matlab代码:
%%%%% 第五种方法Using accumarray
% Another approach is to use accumarray to make the joint histogram after we bin the data.
% Starting with int_x, int_y, K1, xy, etc.:
tic
% take (0,1) data onto [1 K1], following A.Dondas approach for easy comparison
ii = floor(xy(:,1)*(K1-eps))+1;
ii(ii<1) = 1; ii(ii>K1) = K1;
jj = floor(xy(:,2)*(K1-eps))+1;
jj(jj<1) = 1; jj(jj>K1) = K1;
% create the histogram and normalize
H = accumarray([ii jj],ones(1,size(ii,1)));
PDF = H / size(xy,1); % for probabilities summing to 1
toc
% Elapsed time is 0.006356 seconds.
all(count_cells_hist(:) == count_again_fix(:))
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
ms级别! 真是快!
5. 使用mex编译
mex混合编程参考: 在Matlab中使用mex函数进行C/C++混合编程
#include "mex.h"
// http://stackoverflow.com/questions/19745917/calculating-a-2d-joint-probability-distribution
void mexFunction(int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[])
{
unsigned long int hh, ctrl; /* counters */
unsigned long int N, m, n; /* size of matrices */
unsigned long int *xy; /* data */
unsigned long int *count_cells; /* joint frequencies */
/* matrices needed */
mxArray *count_cellsArray;
/* Now we need to get the data */
if (nrhs == 3) {
xy = (unsigned long int*) mxGetData(prhs[0]);
N = (unsigned long int) mxGetM(prhs[0]);//取矩阵的行数
m = (unsigned long int) mxGetScalar(prhs[1]);
n = (unsigned long int) mxGetScalar(prhs[2]);
}
/* Then build the matrices for the output */
count_cellsArray = mxCreateNumericMatrix(m + 1, n + 1, mxUINT32_CLASS, mxREAL);
count_cells = mxGetData(count_cellsArray);
plhs[0] = count_cellsArray;
hh = 0; /* counter for elements of xy */
/* for all points from 1 to N */
for(hh=0; hh<N; hh++) {
ctrl = (m + 1) * xy[N + hh] + xy[hh];
count_cells[ctrl] = count_cells[ctrl] + 1;
}
}
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
将代码保存为: joint_dist_points_2D.c. 在matlab cmd中运行:
mex joint_dist_points_2D.c
1
1
生成joint_dist_points_2D.mexw32文件.
matlab调用代码:
% Use mex function
tic
xy2 = uint32(floor(xy ./ repmat([1 / K1, 1 / K2], N, 1)));
count_cells = joint_dist_points_2D(xy2, uint32(K1), uint32(K2));
toc
% Elapsed time is 0.011696 seconds.
1
2
3
4
5
6
1
2
3
4
5
6
也是非常快的.
blwr316参数
mw316r更好点,水星是路由器的老牌子了,信号稳、穿墙性能好,我就只用的这个牌子,感觉挺好的,希望能够帮到你。
byw96e参数
萨克斯属于一种木管乐器,但管体通常会使用黄铜来制造,使得萨克斯在声音的力度上不但具有着铜管类乐器的特性,而且在音质也有着木管乐器的特点,特别是声音上带有金属的明亮度,是其他木管乐器无法比拟的。
介绍
萨克斯有倍低音萨克斯,低音萨克斯、上低音萨克斯、次中音萨克斯、C调萨克斯、中音萨克斯、F调高音萨克斯、高音萨克斯、C调高音萨克斯、超高音萨克斯。
萨克斯有多种音域和调性,其中以中高音、中音、次中音、上低音四种最多见。 古典萨克斯以中音萨克斯为主,而在爵士乐、流行乐里是以中音次中音为主。所有的萨克斯指法基本都是一样的,吹奏可以不用指法练习就更换乐器。
组成部分
主管
脖管
笛头
哨片
哨箍
盖帽
挂带
萨克斯种类
高音萨克斯
是萨克斯家族中音调第二高的乐器,通常为降B调,仅此于超高音萨克斯(Sopranino),管的体积也是第二_小。常见的为直管,略微曲颈或类似中音萨克斯的形状。相对于黑管,高音萨克斯音量更大,更有穿透力。但由于小管身,使得高音部分更难以控制音准,较难上手。音萨克斯主要用于独奏,在木管重奏中常用来替代双簧管。著名的高音萨克斯演奏家有SidneyBechet,约翰柯川,Wayne Shorter,能等。
中音萨克斯
是最常见的萨克斯,降E调,也是应用在古典乐合奏中最多的萨克斯。于按键距离适中,气息要求和嘴部控制难度介于高音萨克斯和次中音萨克斯之间,以吸相对便宜的价格和搬运容易,成为初学者入i最常使用的萨克斯。中音萨克斯音色较次中音清亮,较高音温和。 中音萨克斯构成了管乐队萨克斯声部的最主要部分,在爵士大乐队编制中和次中音占同等重要位置。作为独奏乐器出现相对少一些。中音萨克斯是萨克斯家族最有代表性的种类。著名的中音萨克斯演奏家有爵士乐: Charlie Parker、Cannonball Adderley、Kenny Garrett。古典乐: Marcel Mule,Sigurd Rascher等。
次中音萨克斯
通常为降B调,外形比中音萨克斯稍大,弯管前端多了一个弯曲,色温和稳重。在管乐队中次中音萨克斯数量少于中音,一般作为辅助角色和小低音号和长号同样的乐谱。
而在爵士乐中次中音起核心作用。1920年代Coleman Hawkins沙哑厚重的声音重新定义了人们对次中音音色的概念。后来的约翰柯川,Stan Getz, Sonny Rollins, Michael Brecke一步一步地奠定了次中音声音的个性。
上低音萨克斯
通常为降E调,是4种中相对少见的类型。体积重量较大,近音两倍左右。很少有人它作为独奏乐器,而在萨克斯四重奏或爵士大乐队中上低音萨克斯以它低沉浑厚的音色把其它声音承托起来,以较简单的吹奏维持着音乐进行的稳定步伐。在管乐队中常和低音号类似的作用,有时让人联想起大提琴的声音。著名演奏家有Gerry Mulligan。
选购
初学萨克斯的朋友基本都是从降E中音萨克斯学起,因为中音萨克斯容易控制大小适中女老少都可以很轻松的演奏,且市面上针对初学萨克斯的教程都是中音萨克斯的教程,因此中音萨克斯以他的优势成为初学者的首选。
初学者没有必要买太好的管子,名牌并不见得好。因为进口的管子大多数也都是出口转内销的,很多所谓的国外品牌其实都在国内生产,一不心就会出高价买个山寨品。可以选择价格在2000-5000的国内品牌即可。
挑选萨克斯要看音准、密合度共振、音域质手感、镀层机械连动、空按萨克斯、按垫是不是均匀平整等等。但这对于初学者来说还是不好把握,好找专业可靠的朋友帮忙挑选。
建议先看乐器的整体造型是否合理,有些萨克斯管口部分很斜,和脖管不对称。检查每个按键的皮垫是否盖严或变形,若有盖得不严会漏气,影响发音。要试一下手感, 每个按键的弹簧是否力度适中。要看一下每个常用活动点是否严密、灵活,哨片箍是否能拧紧,不能太松。笛头部分与哨片接触处是否完整,均无瑕疵。然后最关键的是要试音色是否优美,同一价位的不同萨克斯音色都不一样。再试高音是否明亮低音是否易吹,音准是否好,有些乐器高音大都不准。再看附件是否齐全(部分配有:哨片、翻笛头、挂带等)。
乐理知识
音名
以英文字母来表示音高,称为音名。
12调全音域音名表
一、C调(*):低音234567,中音: 1234567,高音: 123456.(共19个唱名)
二、#C调($):低音1234567,中音: 1234567,高音: 12345.(共19个唱名)
三、D调(*):最低音7,低音,1234567,中音: 1234567,高音:12345.(共20个唱名)
四、E调(&):低音,67,中音:1234567,高:1234567.最高音:1234 (共20个唱名)
五、bE调(*):低音: #67中音:1#12#34#45#56#67 高音:1#2#234#45#56#67最高音:1#1234#4 (共32个唱名)
七、#F调($):低音,567,中音:1234567, 高音:1234567.最高音12(共19个唱名)
八、G调(*):低音,567,中音:1234567,高音:1234567.最高音12(共19个唱名)
九、A调(&):低音,34567,中音: 1234567, 高音: 1234567.最.高音1(共20个唱名)
十、bA调(&):低音,4567,中音:1234567, 高音:1234567.最高音1(共19个唱名)
十一、B调($):低音,234567,中音:1234567,高音: 123456.
十二、bB调(*):低音,34567,中音:1234567, 高音:1234567. (共19个唱名)
备注
1、其中带(*)号的调号为最常用基本调号共6个大调;带(&)号的调号为次常用调号共3个。带($)号的调号为一般不常用的调号共3个调号。
2、此表中共计244个唱音。
哼唱
萨克斯吹一个音,并且几乎同时的唱这个音,同时发出两个音,严格的说不叫双音,和吼叫技巧差不多。通常称它为哼唱,又叫做唱音。
高低音区
萨克斯在日常的娱乐过程中肯定会遇到高低音转换的情况。
这里的高低音转换以是否按着泛音键来区别,一种是主旋律的高低音转换,比如中音萨克斯降E调从中音的1(不按泛音键)到2(按着泛音键)的转换,或者反之,或是吹降B调时从3或4转换到5或反过来。
另一种是装饰音的高低音转换,这个就要求更快,几乎是要在一拍之内完成。
在高低音转换时(这里的高低音转换以是否按着泛音键来区别,下同) , 为了防止吹"破”音,就要通过气息来控制,在转换音的时候把气息“弱”下来,下一个音再逐渐起来,有的时候曲子需要时,加上吐音也能解决这个问题。
升降音
各个调之间无所谓谁高谁低,只是一个八度之间的比较而已。无论是高八度或者是低八度,只要是调对了,大家就能跟伴奏。要做好这件事情,就要有一点基本的乐理知识。最起码对熟悉的曲子能简单唱谱,才能知道里面的那个音是1(dao),那个音是2(rai),那个音是3(mi)。
先确定曲子的调
边听曲子,边唱其谱,选定任何一个音比如1。用萨克斯吹一下各个音(包括半音),看哪个音是正好跟你选定的音相吻合,那么这个音的1所对应的调就是曲子的调。
如果你只熟悉少数指法,就用萨克斯吹一下你熟悉的指法的各个1,看哪个更接近。并确定曲子的那个1比你吹出来的这个1是高还是低?这样你就知道到时候调整音调的时候是应该按上升还是下降了。
音调
经过探究,萨克斯产音域从原本的两个八度和一个五度的根底上,又向上扩大了一个八度和一个四度(扩大音域属于超吹局部,没有必定的根底很难演奏)。
振动不规矩,音的上下听起来不分明,叫做“杂音”;
乐音系统:音乐中所运用的基本的乐音的总和 ;
音级:乐音系统中的各音(专指乐音);(振动起来是有规律的、单纯的,并有准确的高度(也叫音高)的音)
音列:按必定的音高关系和上下顺序,由低到高或由高到低陈列 ;
半音:乐音系统中,音高关系的最小计量单元 ;(相邻的两个音之间最小的距离)
全音:一个全音等于两个半音 ,把八度音划分为十二个音,四个相连的音之间的音程叫全音。
变化音级:将基本音级加以提高或下降得来的音;
晋级音:将基本音级提高半音,如升C、升D、相反是降职音 ;
重升音级:将基本音级提高全音,如重升C、重升D,等,反之为重降 ;
音组:乐音系统中八十多个音用来划分音分为多少组,它的标志是用小写字母并在右上方加数字“1”来表示。如:c1,d1,e1,f1,比小字一组高的各组,由低到高名为“小字二组”、“小字三组”、“小字四组”、“小字五组”。顺次写上数字“2”、“3”、“4”、“5”。比小字一组低的各组,由高到低顺次命名为“小字组”、“大字组”、“大字一组”、“大字二组”。小字组用小写字母,大字组用大写字母 ;
中心C:位于乐音系统总音到中心的小字一组的c1。每秒振动约261次 ;
定律法:断定乐音系统中各音的彻底精确高度,人们在实施中发明白种种定律法。如十二均匀律,五度相生津、纯律等 ;
十二均匀律:将一个纯八度(如c1-c2)分红十二个均等的局部 ;
等音:音高相似而记法和意思不同的音。如升C、降D,重升B,这三个音在钢琴上音高是完全相似的。但记法和意思不同。能够看出,除了升G和降A惟有一个等音外,其它各音都有两个等音 。
复合音:平常听到某一音,一般由很多个音组合而成的。它的发生是因为发音体(以弦为例)振动时,不只全段振动,它的各局部(二、三、四、五段等)也同时在振动 ;
基音:由全弦振动发生的音,听的最清楚的;
泛音:由发音体各局部振动而发生,不易被听出的;
分音:形成复合音的各音;
音域:从低音到高音,音列的总范畴 ;
音区:音域中的一局部。依据音色的不同分为高音区、中音区和低音区。小字组、小字一组、小字二组被以为是中音区,小字三,小字四,五为高音区,大字组,大字一组和二组为低音区。
姿势
1.用挂带将乐器挂在胸前,调整挂带,使其既能负担乐器的重量又能缓解手和臂的紧张程度。
2.站立演奏时,两腿同肩宽,坐着演奏时,两腿打开稍向外,呈九十度弓形触地,身体要自然挺直,背、胸、腰、腹不可弯曲。(新手不建议坐姿演奏萨克斯管不利于掌握气息)
3.含笛头的角度,要以自然呼气和笛头风口的气流方向为依据,因气流方向略向下斜,而笛头和脖管自然要与气流的方向相一致,略往下倾斜为最佳角度,大约为四十五度左右。
4.演奏当中手指、腕部、臂部要松弛,左右手要自然弯曲,指关节要略为隆起,不可平直而蹋落关节,运指时要有节奏感,用力不宜过大。动作不宜僵硬,手指抬的不宜过高。
5.左手拇指扶按在T键上,并且控制八度泛音键,小指控制11(降B)9(升C)8(升G);右手指托住乐器下方靠近身体部分的托钩,小拇指控制1(C)2(降 E),左右手食指、中指、无名指分别放在I、Ⅱ、Ⅲ键上。
6.用嘴控制笛头,挂带控制萨克斯的重量, 左右手控制萨克斯的平衡,使之演奏呈现出最佳姿态。
音调&简谱
一、降B调高音萨克斯管,又俗称直管萨克斯。
二、降E调中音萨克斯管,这是应用较为广泛的一种,一般学生初学萨克斯管时多选择这种音域适中且相对易于演奏的乐器。
三、降B调次中音萨克斯管。
四、降E调上低音萨克斯管,它的体积较大,一般应用于重奏与合奏中。
用女儿情来解释简谱的符号
简谱中的调与调号
1=F,表示这首曲子是F调的。
简谱里常使用各种不同的调。调由两部分组成,即主音的高度与调式类别。简谱中,调号是用以确定1(do)音的音高位置的符号,其形式为1=( )(现在普遍都用“1”来作为调号的基准音),用作调号的音是调式主音,“1=F”就意味着这首乐曲是F调的。
简谱中的拍子和拍号
4/4,是表示这首曲子是44拍。
将旋律的强拍与弱拍用固定音值进行强弱循环,有规律地组合,称为拍子。拍号一般标记在调号的后边。拍子分为单拍子与复拍子两种。
每小节的每一拍由一个完整音符即单纯音符组成的拍子,称为单拍子;每小节的每一拍由一个附点音符或与其等值的音符组成的拍子,称为复拍子。
音符的长短
在简谱中,1、2、3、4、5、6、7这七个基本音符,不仅仅表示音的高低大小,还表示时值长短的基本单位,称为四分音符,其他音符均是在四分音符的基础上通过加记短横线"-"和附点"·"表示。
单纯音符
如果音符时值的长短用短横线" -"表示,就称为单纯音符。单纯音符除四分音符外,在基本音符右侧加记一条短横线,表示增长一个四分音符的时值。这类加记在音符右侧、使音符时值增长的短横线,称为增时线。增时线越多,音符的时值越长。
在基本音符下方加记一条短横线,表示缩短原音符时值的一半。这类加记在音符下方、使音符时值缩短的短横线,称为减时线。
减时线越多,音符的时值越短。单纯音符的名称以全音符为标准而定。如:全音符的二分之一称为二分音符,全音符的四分之一称为四分音符,其余类推。
附点音符
附点就是记在音符右边的小圆点,表示增加前面音符时值的一半, 带附点的音符叫附点音符。简单点说,就是这个音要多唱半拍。
比如“鸳鸯双栖蝶双飞”中,本来“双”只需要唱一秒,因为有了附点音符所以要唱1.5秒的延长音,本来要唱2秒,现在要唱3秒。
音高
在音符的上方加一个圆点(叫做高音点)表示高一个八度,在音符下方加一个圆点(叫做低音点)则表示低一个八度。若在上方加两个圆点,即表示高两个八度,在下方亦是如此,依此类推。
不带点的音符称为“中音”,带高音点的音符称为“高音”,带低音点的音符称为“低音”。
为了演奏(演唱)的方便,一般将乐曲音域的中音区记成不带点的音符(中音),这样可以减少一些记谱符号,看得更清楚。
对应的音区称之为低音区、中音区、高音区。在音符上标点,在演奏乐器或者唱歌的时候找准音的高低。
延音线
音符后面有一根短横线。这个叫做延音线,意思就是唱到这里得拖长音。比如:第一句鸳鸯双栖蝶双飞~(此处用波浪表示延长)。
连音线
两个音符上面有一个弧线叫做连音线,一般是给唱歌看的,表示一个字要对应几个音,中间不断开。意思是说,看到弧线就要将对应的字的读音分解开始唱。
比如第一句:鸳鸯双栖蝶双飞,“蝶”字上有连音线,蝶的读音大家知道,蝶=d+ie。
所以唱的时候要这么唱:蝶~(拖ie的音)
休止符
在简谱中表示音乐的休止(停顿)的符号称为休止符。简谱的休止符用O来表示。吹奏乐器的时候,看到休止符,就可以停止吹奏,然后等下一段节奏再吹奏。
休止符时值的长短与音符的时值基本相同,只是不用增时线,而用更多的O来代替,每增加一个O,表示增加一个相当于一个四分休止符的停顿时间,O越多,停顿的时间越长。在休止符下方加记不同数目的减时线,停顿的时间按比例缩短。常用休止符的写法、休止时值如下:
小节线与终止线
在强拍面前,用来划分节拍单位的垂直线叫小节线。用来表示全曲结束的两条小节线,右边略粗于左边的一条叫终止线。
速度
有两种,一种是文字表示的,如“快速”、“中速”、“慢速”等等。一种是直接告诉你的。比如《女儿情》调号下面的表示为每一分钟唱70个4分音符。
以上就是学简谱时都会学到的基础知识,相信大家对简谱有了更清晰的认识。当然这些知识只是乐理的入门部分,在学习过程中还会接触到更详细的学习内容,如果大家在这方面想了解到更多内容或者有疑问的地方都可以给老师留言,会一一帮大家解答的。
指法
手指的按法
好比手中握着球,稍微弯曲,各手指不要伸的直直的,要有弯弯的感觉。按键时手指不要离开,可能的话轻轻摸着键。
曲目
《茉莉花》、《暗香》、《血色浪漫》、《天空之城》依次从简单到难度比较高,是练萨克斯必备的经典曲目。
《茉莉花》
萨克斯本身声音悠扬清亮,而这首乐曲把缥缈缠绵的意境表现得相当到位,在音质不好的播放器上往往会将声音表现成刺耳的高音,意境皆无。面对难以完美再现的萨克斯,尤其是清纯悠扬的清音效果和抒情的高音时,应该表现的完满而到位。层次感清晰分明,音质柔和不显刺耳,却极富穿透力。
《暗香》
《血色浪漫》
此曲注意每个乐句的气流控制,掌握好正确的吸气方法。在演奏时略带喉音,乐句尾音稍带滑间,还需掌握好超高音的演奏。
《天空之城》
用萨克斯演奏的《天空之城》带着一种天然的恬静,让人们陶醉其中,心里便有了一份宁静,和恩雅的音乐一样,能够洗涤内心的躁动,收获一份久违的静谧,不再为了一些琐事闹心。
保养
保持干燥
每次吹奏完后总会有一些水份留在管内,不及时清理会腐蚀管体。在潮湿多雨的地区保持乐器干燥尤为重要。
乐器使用完毕后,应取下弯脖,把管体内的水分倒出来,用柔软吸水的布简单擦拭下喇叭口处的水分,然后放在通风处15-20分钟,让其自然晾干。用过的清洁布不要直接和乐器放在一起,防止潮气滞留二次腐蚀乐器;通布条和口水棒也不建议使用,通布条来回擦,容易对皮垫的密封性造成很大的影响,漏气了或者卡在萨克斯里边就难办了
口水棒是不吸水的材质,口水有碱性,用它等于用碱2次腐蚀管体加速氧化,也不建议使用。
保持清洁
萨克斯管结构复杂,音孔和音键多达数十个,不定期清洁容易在键轴、键杆和弹簧等部位积攒灰尘和污垢,会严重影响乐器机械性能的发挥,给演奏带来困难。
吹奏完乐器后,应用清洁布擦拭管体表面的指纹和汗迹,否则容易侵蚀管体,加快萨克斯表面的氧化;使用萨克斯时间长了,键柱之间和键杆下面如果有浮尘,可用0.5寸左右的小毛刷轻轻打扫或者可以用卫生棉棒来小心清理。建议1-2周一次即可。
哨片保养
吹奏完毕后,哨片用后要取下,擦去水分,放入哨片夹内,妥善保管。短时休息时,一定要套上笛头帽。
笛头保养
笛头每次用完后用水冲洗干净,再用软布擦干即可,也可直接擦干净。
键垫保养
吹奏完毕后键垫有潮湿的情况出现,会硬化减少使用寿命;可用吸水纸夹在键垫与音孔之间。手按键子,将水分吸干,保持各部分的干燥,一定不要让纸屑留在音口上以免造成漏气现象。
按键灵活
萨克斯管音调的变化主要依靠音键和音孔的变化来实现,因此尤其音键应具备高度的灵活性。所以应定期滴专用键油以增强它的灵活性并防止锈死。
每隔2个月在萨克斯各键连杆处注入萨克斯润滑油,不要太多,防止键油流到管体上导致漆面提早氧化,滴完后活动几下键子使油充分渗入,用软布把表面多余的油擦干净即可。
乐器上固定各键连杆的各个螺丝,要进行经常性的检查,如有松动将其拧紧。由于萨克斯的泛音孔很小,较易堵塞,所以要定期清理。根据个人使用情况1-2年要到萨克斯维护中心做一次保养;如果萨克斯长时间未用,开始用的时候,需要做一次检查以及保养。
手应该拿在萨克斯没有按键的部分,比如喇叭口或者上侧弯脖接口处,或者手拿指托处,一定要牢靠、稳妥;并且乐器放回箱包后,一定记得拉上箱包拉链,避免不小心乐器的滑出造成不必要的磕碰。
%3Chowto_content%3E[{"type":"paragraph","attrs":{"is_abstract":true},"children":[{"type":"text","text":"萨克斯属于一种木管乐器,但管体通常会使用黄铜来制造,使","id":""},{"type":"text","text":"得","id":""},{"type":"text","text":"萨克斯在声音的力度上不但具有着铜管类乐器的特性,而且在音质也有着木管乐器的特点,特别是声音上带有金属的明亮度,是其他木管乐器无法比拟的","id":""},{"type":"text","text":"。","id":""}],"text":"","id":"doxcnmY0kk0MW2a6I6rYWpBYzBc"},{"type":"heading","attrs":{"level":1},"children":[{"type":"text","text":"介绍","id":""}],"text":"","id":"doxcnGWCQQOOSW2w0SSSXkkoEmc"},{"type":"paragraph","children":[{"type":"text","text":"萨克斯有倍低音萨克斯,低音萨克斯、上低音萨克斯、次中音萨克斯、C调萨克斯、中音萨克斯、F调高音萨克斯、高音萨克斯、C调高音萨克斯、超高音萨克斯。","id":""}],"text":"","id":"doxcnSGmoqGI0a4E4YLavQSyuHg"},{"type":"paragraph","children":[{"type":"text","text":"萨克斯有多种音域和调性,其中以中高音、中音、次中音、上低音四种最多见。 古典萨克斯以中音萨克斯为主,而在爵士乐、流行乐里是以中音次中音为主。所有的萨克斯指法基本都是一样的,吹奏可以不用指法练习就更换乐器。","id":""}],"text":"","id":"doxcnKic0kgmO64cAyodJQ7Qxth"},{"type":"heading","attrs":{"level":1},"children":[{"type":"text","text":"组成部分","id":""}],"text":"","id":"doxcnicgs8Iy0K0sEKO9hEOYvSb"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"主管","id":""}],"text":"","id":"doxcnW6mC4mEw0mQOSWUaxbCn7s"},,"attrs":{"height":609,"note":[{"type":"text","text":"主管","id":""}],"url":"{{image_domain}}tos-cn-i-qvj2lq49k0/6189100d2c36478ca8361e3c1f39f0f5","width":243},"text":"","id":"doxcnSE6ucAAqyGOGYLizdlZcxe"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"脖管","id":""}],"text":"","id":"doxcnqIGyoucsWw8qaQ7skVF6gf"},,"attrs":{"height":501,"note":[{"type":"text","text":"脖管","id":""}],"url":"{{image_domain}}tos-cn-i-qvj2lq49k0/f417d55fc6244c428ba13aa75801e2e9","width":778},"text":"","id":"doxcnGqYgwac6KEMo43FtlOWqGf"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"笛头","id":""}],"text":"","id":"doxcngo8soScasYU8OkjP5tx50f"},,"attrs":{"height":306,"note":[{"type":"text","text":"笛头","id":""}],"url":"{{image_domain}}tos-cn-i-qvj2lq49k0/96e062e5fea049839669c8b26ec0d77a","width":705},"text":"","id":"doxcnu4OEsmEwgig2SO3FqcC0Ih"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"哨片","id":""}],"text":"","id":"doxcn6giOqaq66gcmMXlNrAgzZc"},,"attrs":{"height":365,"note":[{"type":"text","text":"哨片","id":""}],"url":"{{image_domain}}tos-cn-i-qvj2lq49k0/75cad85d1b1b4ef7bd3e2c53c7563292","width":277},"text":"","id":"doxcn6ME6EM0YUEmqeW3PPqjpeb"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"哨箍","id":""}],"text":"","id":"doxcnm8OymOu8u0ukQLu5mWxfle"},,"attrs":{"height":359,"note":[{"type":"text","text":"哨箍","id":""}],"url":"{{image_domain}}tos-cn-i-qvj2lq49k0/0db081831cbc4f3994f573de26ae193e","width":351},"text":"","id":"doxcn2Qeuouww6w02CAMDoGGbYc"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"盖帽","id":""}],"text":"","id":"doxcnGUuKy2k0iKewuYHFRovdHc"},,"attrs":{"height":832,"note":[{"type":"text","text":"盖帽","id":""}],"url":"{{image_domain}}tos-cn-i-qvj2lq49k0/f19710625f584ac7a167c6916f6306cf","width":401},"text":"","id":"doxcnA2m8CqEqgkiwQb7xrEf2jb"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"挂带","id":""}],"text":"","id":"doxcni2oOEigg4iQ4EPH8dUIolf"},,"attrs":{"height":737,"note":[{"type":"text","text":"挂带","id":""}],"url":"{{image_domain}}tos-cn-i-qvj2lq49k0/93ba78621894488890e3eae44a739f02","width":659},"text":"","id":"doxcnGwq2A4kAIEIeqOGwrjT3ge"},{"type":"heading","attrs":{"level":1},"children":[{"type":"text","text":"萨克斯种类","id":""}],"text":"","id":"doxcn04uaCWAgS0O84FdPKveeng"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"高音萨克斯","id":""}],"text":"","id":"doxcnUMAYGk82cQwa6NvUDtBfgb"},{"type":"paragraph","children":[{"type":"text","text":"是萨克斯家族中音调第二高的乐器,通常为降B调,仅此于超高音萨克斯(Sopranino),管的体积也是第二_小。常见的为直管,略微曲颈或类似中音萨克斯的形状。相对于黑管,高音萨克斯音量更大,更有穿透力。但由于小管身,使得高音部分更难以控制音准,较难上手。音萨克斯主要用于独奏,在木管重奏中常用来替代双簧管。著名的高音萨克斯演奏家有SidneyBechet,约翰柯川,Wayne Shorter,能等。","id":""}],"text":"","id":"doxcnU26ygeS8Ckiw8z3Ix1hese"},,"attrs":{"height":598,"note":[{"type":"text","text":"高音萨克斯","id":""}],"url":"{{image_domain}}tos-cn-i-qvj2lq49k0/af7e45386bf740ac840f040d5a68e8b4","width":599},"text":"","id":"doxcn0sS4iCAcgkocM7ITP4UvTh"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"中音萨克斯","id":""}],"text":"","id":"doxcn686mIMe4K2Q0gfZ1WMp6Gf"},{"type":"paragraph","children":[{"type":"text","text":"是最常见的萨克斯,降E调,也是应用在古典乐合奏中最多的萨克斯。于按键距离适中,气息要求和嘴部控制难度介于高音萨克斯和次中音萨克斯之间,以吸相对便宜的价格和搬运容易,成为初学者入i最常使用的萨克斯。中音萨克斯音色较次中音清亮,较高音温和。\\n","id":""},{"type":"text","text":"中音萨克斯构成了管乐队萨克斯声部的最主要部分,在爵士大乐队编制中和次中音占同等重要位置。作为独奏乐器出现相对少一些。中音萨克斯是萨克斯家族最有代表性的种类。著名的中音萨克斯演奏家有爵士乐: Charlie Parker、Cannonball Adderley、Kenny Garrett。古典乐: Marcel Mule,Sigurd Rascher等。","id":""}],"text":"","id":"doxcn8Ko6Aq2E2a26KO7g7Qj7jh"},,"attrs":{"height":676,"note":[{"type":"text","text":"中音萨克斯","id":""}],"url":"{{image_domain}}tos-cn-i-qvj2lq49k0/88c4887aeff342dcac58d61b89b3ee52","width":485},"text":"","id":"doxcn6Cc2wgWQOMaeklrr5w0gJf"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"次中音萨克斯","id":""}],"text":"","id":"doxcnmYmMASO0kmYGU1VU4UMUjb"},{"type":"paragraph","children":[{"type":"text","text":"通常为降B调,外形比中音萨克斯稍大,弯管前端多了一个弯曲,色温和稳重。在管乐队中次中音萨克斯数量少于中音,一般作为辅助角色和小低音号和长号同样的乐谱。","id":""}],"text":"","id":"doxcnuAswqmwA6GQY6TyToKxmDd"},{"type":"paragraph","children":[{"type":"text","text":"而在爵士乐中次中音起核心作用。1920年代Coleman Hawkins沙哑厚重的声音重新定义了人们对次中音音色的概念。后来的约翰柯川,Stan Getz, Sonny Rollins, Michael Brecke一步一步地奠定了次中音声音的个性。","id":""}],"text":"","id":"doxcnmuKMe8KY02E2oB4GK2mLwe"},,"attrs":{"height":412,"note":[{"type":"text","text":"次中音萨克斯","id":""}],"url":"{{image_domain}}tos-cn-i-qvj2lq49k0/4343f601182d4d7ea34b251716ac7b0c","width":545},"text":"","id":"doxcnKmqI4o0We6OSGw13yW7W2g"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":" 上低音萨克斯","id":""}],"text":"","id":"doxcnCUk6EyM0SeMCUjTot6PuTc"},{"type":"paragraph","children":[{"type":"text","text":"通常为降E调,是4种中相对少见的类型。体积重量较大,近音两倍左右。很少有人它作为独奏乐器,而在萨克斯四重奏或爵士大乐队中上低音萨克斯以它低沉浑厚的音色把其它声音承托起来,以较简单的吹奏维持着音乐进行的稳定步伐。在管乐队中常和低音号类似的作用,有时让人联想起大提琴的声音。著名演奏家有Gerry Mulligan。","id":""}],"text":"","id":"doxcnygmsUmAUQKIsKw6aRvvfsg"},,"attrs":{"height":724,"note":[{"type":"text","text":" 上低音萨克斯","id":""}],"url":"{{image_domain}}tos-cn-i-qvj2lq49k0/0af6b1ec5cf34895946a75f34b19f8c1","width":551},"text":"","id":"doxcnGeg8CmA4804mG8emd0fbMe"},{"type":"heading","attrs":{"level":1},"children":[{"type":"text","text":"选购","id":""}],"text":"","id":"doxcnEaMeoGqwUmAuGuu11Nj0sg"},{"type":"paragraph","children":[{"type":"text","text":"初学萨克斯的朋友基本都是从降E中音萨克斯学起,因为中音萨克斯容易控制大小适中女老少都可以很轻松的演奏,且市面上针对初学萨克斯的教程都是中音萨克斯的教程,因此中音萨克斯以他的优势成为初学者的首选。 ","id":""}],"text":"","id":"doxcnOeaK4qCE8O4eAjajQhMuag"},{"type":"paragraph","children":[{"type":"text","text":"初学者没有必要买太好的管子,名牌并不见得好。因为进口的管子大多数也都是出口转内销的,很多所谓的国外品牌其实都在国内生产,一不心就会出高价买个山寨品。可以选择价格在2000-5000的国内品牌即可。","id":""}],"text":"","id":"doxcn8YIsUawmQEAqwrxIv81hNh"},{"type":"paragraph","children":[{"type":"text","text":"挑选萨克斯要看音准、密合度共振、音域质手感、镀层机械连动、空按萨克斯、按垫是不是均匀平整等等。但这对于初学者来说还是不好把握,好找专业可靠的朋友帮忙挑选。","id":""}],"text":"","id":"doxcnIsqYuesiamOaAzCH7aT50c"},{"type":"paragraph","children":[{"type":"text","text":"建议先看乐器的整体造型是否合理,有些萨克斯管口部分很斜,和脖管不对称。检查每个按键的皮垫是否盖严或变形,若有盖得不严会漏气,影响发音。要试一下手感, 每个按键的弹簧是否力度适中。要看一下每个常用活动点是否严密、灵活,哨片箍是否能拧紧,不能太松。笛头部分与哨片接触处是否完整,均无瑕疵。然后最关键的是要试音色是否优美,同一价位的不同萨克斯音色都不一样。再试高音是否明亮低音是否易吹,音准是否好,有些乐器高音大都不准。再看附件是否齐全(部分配有:哨片、翻笛头、挂带等)。","id":""}],"text":"","id":"doxcnauikgWIogiAc6tpYo0HW8e"},{"type":"heading","attrs":{"level":1},"children":[{"type":"text","text":"乐理知识","id":""}],"text":"","id":"doxcnqYq6a2MausOeOIJgi4Coge"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"音名","id":""}],"text":"","id":"doxcnkUqW80o6CGo62qMavOn2Ej"},{"type":"paragraph","children":[{"type":"text","text":"以英文字母来表示音高,称为","id":""},{"type":"text","text":"音名。","id":""}],"text":"","id":"doxcnk4YKsMw2AYAaARn5V7WBie"},{"type":"paragraph","children":[{"type":"text","marks":[{"type":"strong"}],"text":"12调全音域音名表","id":""}],"text":"","id":"doxcnuM4yIoWKiOeSw5DOyS15Qe"},{"type":"paragraph","children":[{"type":"text","text":"一、C调(*):低音234567,中音: 1234567,高音: 123456.(共19个唱名)","id":""}],"text":"","id":"doxcnoOs4c6OIsWEsBFrPZvO8Lq"},{"type":"paragraph","children":[{"type":"text","text":"二、#C调($):低音1234567,中音: 1234567,高音: 12345.(共19个唱名)","id":""}],"text":"","id":"doxcnoogGWgWMoU0mAbYBAvyZ6d"},{"type":"paragraph","children":[{"type":"text","text":"三、D调(*):最低音7,低音,1234567,中音: 1234567,高音:12345.(共20个唱名)","id":""}],"text":"","id":"doxcniQgk6oiKIuikQN4bd44h9b"},{"type":"paragraph","children":[{"type":"text","text":"四、E调(\u0026):低音,67,中音:1234567,高:1234567.最高音:1234 (共20个唱名)","id":""}],"text":"","id":"doxcnUwuSCaESO8AMy6FOrymAah"},{"type":"paragraph","children":[{"type":"text","text":"五、bE调(*):低音: #67中音:1#12#34#45#56#67 高音:1#2#234#45#56#67最高音:1#1234#4 (共32个唱名)","id":""}],"text":"","id":"doxcni6e4YWYcm4Ku21RdVClHOf"},{"type":"paragraph","children":[{"type":"text","text":"七、#F调($):低音,567,中音:1234567, 高音:1234567.最高音12(共19个唱名)","id":""}],"text":"","id":"doxcngiiM2wqmUKwOq6B2Gkw98c"},{"type":"paragraph","children":[{"type":"text","text":"八、G调(*):低音,567,中音:1234567,高音:1234567.最高音12(共19个唱名)","id":""}],"text":"","id":"doxcngGIg6eGK48ooo32mJDC5ud"},{"type":"paragraph","children":[{"type":"text","text":"九、A调(\u0026):低音,34567,中音: 1234567, 高音: 1234567.最.高音1(共20个唱名)","id":""}],"text":"","id":"doxcnAQkyuAgCUYw44LSAdpKn4f"},{"type":"paragraph","children":[{"type":"text","text":"十、bA调(\u0026):低音,4567,中音:1234567, 高音:1234567.最高音1(共19个唱名)","id":""}],"text":"","id":"doxcnqAM8qkY6gQwE6dB8d811bd"},{"type":"paragraph","children":[{"type":"text","text":"十一、B调($):低音,234567,中音:1234567,高音: 123456.","id":""}],"text":"","id":"doxcncIkyGKaI4MmyMZ1hhK2dCc"},{"type":"paragraph","children":[{"type":"text","text":"十二、bB调(*):低音,34567,中音:1234567, 高音:1234567. (共19个唱名)","id":""}],"text":"","id":"doxcncuY2sYaKQ8wME1ZynTRbXg"},{"type":"paragraph","children":[{"type":"text","marks":[{"type":"strong"}],"text":" 备注","id":""}],"text":"","id":"doxcniUW2GG2IqmGgMdM1HgjUmd"},{"type":"paragraph","children":[{"type":"text","text":"1、其中带(*)号的调号为最常用基本调号共6个大调;带(\u0026)号的调号为次常用调号共3个。带($)号的调号为一般不常用的调号共3个调号。 ","id":""}],"text":"","id":"doxcn0ggu8q8MiwYEMn7hJ45Beg"},{"type":"paragraph","children":[{"type":"text","text":"2、此表中共计244个唱音。","id":""}],"text":"","id":"doxcnYSOSAKcQIg08MvLOjOZ6Vc"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"哼唱","id":""}],"text":"","id":"doxcnq0YIiI8uqGss5sBsidqkgh"},{"type":"paragraph","children":[{"type":"text","text":"萨克斯吹一个音,并且几乎同时的唱这个音,同时发出两个音,严格的说不叫双音,和吼叫技巧差不多。通常称它为哼唱,又叫做唱音。","id":""}],"text":"","id":"doxcnkuagUKwW004Eui5fpeNOHc"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"高低音区","id":""}],"text":"","id":"doxcn2maOcSsQickIMb1jyES34e"},{"type":"paragraph","children":[{"type":"text","text":"萨克斯在日常的娱乐过程中肯定会遇到高低音转换的情况。","id":""}],"text":"","id":"doxcnmw2uksOWy4woeeVyNq2psc"},{"type":"paragraph","children":[{"type":"text","text":"这里的高低音转换以是否按着泛音键来区别,一种是主旋律的高低音转换,比如中音萨克斯降E调从中音的1(不按泛音键)到2(按着泛音键)的转换,或者反之,或是吹降B调时从3或4转换到5或反过来。","id":""}],"text":"","id":"doxcnwIwMiWWYKwk0aANyHr98Le"},{"type":"paragraph","children":[{"type":"text","text":"另一种是装饰音的高低音转换,这个就要求更快,几乎是要在一拍之内完成。","id":""}],"text":"","id":"doxcn4UyaKWueA8kWQjoIwsmPyh"},{"type":"paragraph","children":[{"type":"text","text":"在高低音转换时(这里的高低音转换以是否按着泛音键来区别,下同) , 为了防止吹\"破”音,就要通过气息来控制,在转换音的时候把气息“弱”下来,下一个音再逐渐起来,有的时候曲子需要时,加上吐音也能解决这个问题。","id":""}],"text":"","id":"doxcni4OwScWiSaiEGM5NZM8fYg"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"升降音","id":""}],"text":"","id":"doxcnwukES2wQ0wISW2LpP5MNWg"},{"type":"paragraph","children":[{"type":"text","text":"各个调之间无所谓谁高谁低,只是一个八度之间的比较而已。无论是高八度或者是低八度,只要是调对了,大家就能跟伴奏。要做好这件事情,就要有一点基本的乐理知识。最起码对熟悉的曲子能简单唱谱,才能知道里面的那个音是1(dao),那个音是2(rai),那个音是3(mi)。","id":""}],"text":"","id":"doxcnEiq0KOmSY080kZJsOMRvwh"},{"type":"paragraph","children":[{"type":"text","marks":[{"type":"strong"}],"text":"先确定曲子的调","id":""}],"text":"","id":"doxcnKAwwwcQ2uAoSwXvNSasBYf"},{"type":"paragraph","children":[{"type":"text","text":"边听曲子,边唱其谱,选定任何一个音比如1。用萨克斯吹一下各个音(包括半音),看哪个音是正好跟你选定的音相吻合,那么这个音的1所对应的调就是曲子的调。","id":""}],"text":"","id":"doxcn6so0AEY44mgs4JhorWqAgg"},{"type":"paragraph","children":[{"type":"text","text":"如果你只熟悉","id":""},{"type":"text","text":"少数指法","id":""},{"type":"text","text":",就用萨克斯吹一下你熟悉的指法的各个1,看哪个更接近。并确定曲子的那个1比你吹出来的这个1是高还是低?这样你就知道到时候调整音调的时候是应该按上升还是下降了。","id":""}],"text":"","id":"doxcnACYOko0aM86kucDItUt7bc"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"音调","id":""}],"text":"","id":"doxcnkqyw0mAwaEAegjvhZKTINg"},{"type":"paragraph","children":[{"type":"text","text":"经过探究,萨克斯产音域从原本的两个八度和一个五度的根底上,又向上扩大了一个八度和一个四度(扩大音域属于超吹局部,没有必定的根底很难演奏)。","id":""},{"type":"text","text":" ","id":""}],"text":"","id":"doxcnS44AMISMgEkGSCLTbVNrec"},{"type":"paragraph","children":[{"type":"text","text":"振动不规矩,音的上下听起来不分明,叫做“杂音”;","id":""}],"text":"","id":"doxcnkqqoeci0846CwRMHsps6Ce"},{"type":"paragraph","children":[{"type":"text","text":"乐音系统:音乐中所运用的基本的乐音的总和 ;","id":""}],"text":"","id":"doxcnig6MU4KS0ksEA9OY4eknye"},{"type":"paragraph","children":[{"type":"text","text":"音级:乐音系统中的各音(专指乐音);(振动起来是有规律的、单纯的,并有准确的高度(也叫音高)的音)","id":""}],"text":"","id":"doxcnqcouaYC0MUgSG4bs2JcVa9"},{"type":"paragraph","children":[{"type":"text","text":"音列:按必定的音高关系和上下顺序,由低到高或由高到低陈列 ;","id":""}],"text":"","id":"doxcnSCsGQcwgmgGqAd1dGITVmg"},{"type":"paragraph","children":[{"type":"text","text":"半音:乐音系统中,音高关系的最小计量单元 ;(相邻的两个音之间最小的距离)","id":""}],"text":"","id":"doxcn26aCmoQOWUcaUVyI2eNP1e"},{"type":"paragraph","children":[{"type":"text","text":"全音","id":""},{"type":"text","text":":一个全音等于两个半音 ,把八度音划分为十二个音,四个相连的音之间的音程叫全音。","id":""}],"text":"","id":"doxcnOgKy6iK2oceskFlhJklopg"},{"type":"paragraph","children":[{"type":"text","text":"变化音级:将基本音级加以提高或下降得来的音; ","id":""}],"text":"","id":"doxcn8YsYweOeUogSWuwHqEBBBd"},{"type":"paragraph","children":[{"type":"text","text":"晋级音:将基本音级提高半音,如升C、升D、相反是降职音 ; ","id":""}],"text":"","id":"doxcnCs4egmAK6sqEmkSXhH2Y6b"},{"type":"paragraph","children":[{"type":"text","text":"重升音级:将基本音级提高全音,如重升C、重升D,等,反之为重降 ;","id":""}],"text":"","id":"doxcnWCqKQOecgoaoaEtfIBLtfd"},{"type":"paragraph","children":[{"type":"text","text":"音组:乐音系统中八十多个音用来划分音分为多少组,它的标志是用小写字母并在右上方加数字“1”来表示。如:c1,d1,e1,f1,比小字一组高的各组,由低到高名为“小字二组”、“小字三组”、“小字四组”、“小字五组”。顺次写上数字“2”、“3”、“4”、“5”。比小字一组低的各组,由高到低顺次命名为“小字组”、“大字组”、“大字一组”、“大字二组”。小字组用小写字母,大字组用大写字母 ; ","id":""}],"text":"","id":"doxcnmAEa24k0kMgGg1zydHIGMd"},{"type":"paragraph","children":[{"type":"text","text":"中心C:位于乐音系统总音到中心的小字一组的c1。每秒振动约261次 ;","id":""}],"text":"","id":"doxcn0mEScK4MQSG0qSMZQURUne"},{"type":"paragraph","children":[{"type":"text","text":"定律法:断定乐音系统中各音的彻底精确高度,人们在实施中发明白种种定律法。如十二均匀律,五度相生津、纯律等 ;","id":""}],"text":"","id":"doxcnAmIUWcuAecaWcP0zMGF4Cc"},{"type":"paragraph","children":[{"type":"text","text":"十二均匀律:将一个纯八度(如c1-c2)分红十二个均等的局部 ; ","id":""}],"text":"","id":"doxcnwwimeswyOycwq0tz695Usb"},{"type":"paragraph","children":[{"type":"text","text":"等音:音高相似而记法和意思不同的音。如升C、降D,重升B,这三个音在钢琴上音高是完全相似的。但记法和意思不同。能够看出,除了升G和降A惟有一个等音外,其它各音都有两个等音 。","id":""}],"text":"","id":"doxcniQYgAiym2IOCG0adrpwx2e"},{"type":"paragraph","children":[{"type":"text","text":"复合音:平常听到某一音,一般由很多个音组合而成的。它的发生是因为发音体(以弦为例)振动时,不只全段振动,它的各局部(二、三、四、五段等)也同时在振动 ; ","id":""}],"text":"","id":"doxcnccQGu4GcwasOKG7RaRs2mf"},{"type":"paragraph","children":[{"type":"text","text":"基音:由全弦振动发生的音,听的最清楚的; ","id":""}],"text":"","id":"doxcnQyyQwQCKEAAQGsXNRMPDWd"},{"type":"paragraph","children":[{"type":"text","text":"泛音:由发音体各局部振动而发生,不易被听出的; ","id":""}],"text":"","id":"doxcn0Wi6OM2K26KsO8Ixd8acOf"},{"type":"paragraph","children":[{"type":"text","text":"分音:形成复合音的各音; ","id":""}],"text":"","id":"doxcnmUmAAMySoWiewJZj1NveDc"},{"type":"paragraph","children":[{"type":"text","text":"音域:从低音到高音,音列的总范畴 ; ","id":""}],"text":"","id":"doxcn2kquOwA0MAaSBO7s9roTNc"},{"type":"paragraph","children":[{"type":"text","text":"音区:音域中的一局部。依据音色的不同分为高音区、中音区和低音区。小字组、小字一组、小字二组被以为是中音区,小字三,小字四,五为高音区,大字组,大字一组和二组为低音区。","id":""}],"text":"","id":"doxcncAiIG8I6KQs8kve2yxpdDb"},{"type":"heading","attrs":{"level":1},"children":[{"type":"text","text":"姿势","id":""}],"text":"","id":"doxcn4eQU4a0OaykYSUcjvBBFCg"},{"type":"paragraph","children":[{"type":"text","text":"1.用挂带将乐器挂在胸前,调整挂带,使其既能负担乐器的重量又能缓解手和臂的紧张程度。","id":""}],"text":"","id":"doxcngG646UsmMA6IyIHnuiAwCg"},{"type":"paragraph","children":[{"type":"text","text":"2.站立演奏时,两腿同肩宽,坐着演奏时,两腿打开稍向外,呈九十度弓形触地,身体要自然挺直,背、胸、腰、腹不可弯曲。(新手不建议坐姿演奏萨克斯管不利于掌握气息)","id":""}],"text":"","id":"doxcnaoyIu0S6Cy4mg5pjsBlRif"},{"type":"paragraph","children":[{"type":"text","text":"3.含笛头的角度,要以自然呼气和笛头风口的气流方向为依据,因气流方向略向下斜,而笛头和脖管自然要与气流的方向相一致,略往下倾斜为最佳角度,大约为四十五度左右。","id":""}],"text":"","id":"doxcne0KcUSoEmo0o5RlTYWfbyW"},{"type":"paragraph","children":[{"type":"text","text":"4.演奏当中手指、腕部、臂部要松弛,左右手要自然弯曲,指关节要略为隆起,不可平直而蹋落关节,运指时要有节奏感,用力不宜过大。动作不宜僵硬,手指抬的不宜过高。","id":""}],"text":"","id":"doxcnuWEimoa66ukegwSf8LMPT5"},{"type":"paragraph","children":[{"type":"text","text":"5.左手拇指扶按在T键上,并且控制八度泛音键,小指控制11(降B)9(升C)8(升G);右手指托住乐器下方靠近身体部分的托钩,小拇指控制1(C)2(降 E),左右手食指、中指、无名指分别放在I、Ⅱ、Ⅲ键上。","id":""}],"text":"","id":"doxcnuka4QIYmKosayEjiKWKMTU"},{"type":"paragraph","children":[{"type":"text","text":"6.用嘴控制笛头,挂带控制萨克斯的重量, 左右手控制萨克斯的平衡,使之演奏呈现出最佳姿态。","id":""}],"text":"","id":"doxcnO0uKY0aqMsEsw9HWFRD7zf"},{"type":"heading","attrs":{"level":1},"children":[{"type":"text","text":"音调\u0026简谱","id":""}],"text":"","id":"doxcnwQyoI4Q2UUY046BPVq6xif"},{"type":"paragraph","children":[{"type":"text","text":"一、降B调高音萨克斯管,又俗称直管萨克斯。","id":""}],"text":"","id":"doxcnqw2m82I4kyq8gReeozh2kf"},{"type":"paragraph","children":[{"type":"text","text":"二、降E调中音萨克斯管,这是应用较为广泛的一种,一般学生初学萨克斯管时多选择这种音域适中且相对易于演奏的乐器。","id":""}],"text":"","id":"doxcncwaeqa0g2Mw8MpM2jzhEPh"},{"type":"paragraph","children":[{"type":"text","text":"三、降B调次中音萨克斯管。","id":""}],"text":"","id":"doxcnQQIS0kiwES2S0GX3vK6NYf"},{"type":"paragraph","children":[{"type":"text","text":"四、降E调上低音萨克斯管,它的体积较大,一般应用于重奏与合奏中。","id":""}],"text":"","id":"doxcn24gIMUI8womSC0lAmgbtVh"},{"type":"paragraph","children":[{"type":"text","marks":[{"type":"strong"}],"text":"用女儿情来解释简谱的符号","id":""}],"text":"","id":"doxcnea2cGQUIu6w0WsBJ8sekAg"},,"attrs":{"height":618,"note":[{"type":"text","text":"音调\u0026简谱","id":""}],"url":"{{image_domain}}tos-cn-i-qvj2lq49k0/1b69614ef1044c6881b20c0b12dc110e","width":404},"text":"","id":"doxcnw4ac2gqcY2sig3YqxBb1eY"},{"type":"paragraph","children":[{"type":"text","marks":[{"type":"strong"}],"text":"简谱中的调与调号","id":""}],"text":"","id":"doxcncAyS22WeYgkcO3Iackierb"},{"type":"paragraph","children":[{"type":"text","text":"1=F,表示这首曲子是F调的。","id":""}],"text":"","id":"doxcnkwYUi6U2Umq0sW4LB2uP19"},{"type":"paragraph","children":[{"type":"text","text":"简谱里常使用各种不同的调。调由两部分组成,即主音的高度与调式类别。简谱中,调号是用以确定1(do)音的音高位置的符号,其形式为1=( )(现在普遍都用“1”来作为调号的基准音),用作调号的音是调式主音,“1=F”就意味着这首乐曲是F调的。","id":""}],"text":"","id":"doxcnS08muk2eMogM0YicrSc2Bd"},{"type":"paragraph","children":[{"type":"text","marks":[{"type":"strong"}],"text":"简谱中的拍子和拍号","id":""}],"text":"","id":"doxcn6wCCw0wW8ygqaeGtRCABVh"},{"type":"paragraph","children":[{"type":"text","text":"4/4,是表示这首曲子是44拍。","id":""}],"text":"","id":"doxcnIcOUyaugMy8keqdC3rnMFf"},{"type":"paragraph","children":[{"type":"text","text":"将旋律的强拍与弱拍用固定音值进行强弱循环,有规律地组合,称为拍子。拍号一般标记在调号的后边。拍子分为单拍子与复拍子两种。","id":""}],"text":"","id":"doxcnaYQ66coSoKmcc1sobLITef"},{"type":"paragraph","children":[{"type":"text","text":"每小节的每一拍由一个完整音符即单纯音符组成的拍子,称为单拍子;每小节的每一拍由一个附点音符或与其等值的音符组成的拍子,称为复拍子。","id":""}],"text":"","id":"doxcnUYEEogmMi8UmSi5e4hJvIg"},{"type":"paragraph","children":[{"type":"text","marks":[{"type":"strong"}],"text":"音符的长短","id":""}],"text":"","id":"doxcnauWEs4YUecOa8uzROt9g0b"},{"type":"paragraph","children":[{"type":"text","text":"在简谱中,1、2、3、4、5、6、7这七个基本音符,不仅仅表示音的高低大小,还表示时值长短的基本单位,称为四分音符,其他音符均是在四分音符的基础上通过加记短横线\"-\"和附点\"·\"表示。","id":""}],"text":"","id":"doxcnkKwcU8ocwY2SW2VzOXLakf"},{"type":"paragraph","children":[{"type":"text","marks":[{"type":"strong"}],"text":"单纯音符","id":""}],"text":"","id":"doxcnme2uM6wUocWEGg70zaalcg"},{"type":"paragraph","children":[{"type":"text","text":"如果音符时值的长短用短横线\" -\"表示,就称为单纯音符。单纯音符除四分音符外,在基本音符右侧加记一条短横线,表示增长一个四分音符的时值。这类加记在音符右侧、使音符时值增长的短横线,称为增时线。增时线越多,音符的时值越长。","id":""}],"text":"","id":"doxcn2kYqiuSEsacQCOarhIvqdc"},,"attrs":{"height":261,"note":[{"type":"text","text":"音调\u0026简谱","id":""}],"url":"{{image_domain}}tos-cn-i-qvj2lq49k0/7c64a14cc4c24670b63acbec79f81171","width":478},"text":"","id":"doxcnoewcWSyYQSS8uuB9TRuq8g"},{"type":"paragraph","children":[{"type":"text","text":"在基本音符下方加记一条短横线,表示缩短原音符时值的一半。这类加记在音符下方、使音符时值缩短的短横线,称为减时线。","id":""}],"text":"","id":"doxcnmSyekmOGuqMYu6cGpDdK1e"},{"type":"paragraph","children":[{"type":"text","text":"减时线越多,音符的时值越短。单纯音符的名称以全音符为标准而定。如:全音符的二分之一称为二分音符,全音符的四分之一称为四分音符,其余类推。","id":""}],"text":"","id":"doxcnQuOYOYKMucKA4ctWH1hYAd"},{"type":"paragraph","children":[{"type":"text","marks":[{"type":"strong"}],"text":"附点音符","id":""}],"text":"","id":"doxcnAs6EuWsEkK86WUcG0jZdIb"},{"type":"paragraph","children":[{"type":"text","text":"附点就是记在音符右边的小圆点,表示增加前面音符时值的一半, 带附点的音符叫附点音符。简单点说,就是这个音要多唱半拍。","id":""}],"text":"","id":"doxcn6WYeIuSCC0sSVWeVwsDRuF"},{"type":"paragraph","children":[{"type":"text","text":"比如“鸳鸯双栖蝶双飞”中,本来“双”只需要唱一秒,因为有了附点音符所以要唱1.5秒的延长音,本来要唱2秒,现在要唱3秒。","id":""}],"text":"","id":"doxcnA8Keomsou8aaUR6AjgOHsf"},{"type":"paragraph","children":[{"type":"text","marks":[{"type":"strong"}],"text":"音高","id":""}],"text":"","id":"doxcn4AMI0eC6qKCKhsG0VSlWwW"},{"type":"paragraph","children":[{"type":"text","text":"在音符的上方加一个圆点(叫做高音点)表示高一个八度,在音符下方加一个圆点(叫做低音点)则表示低一个八度。若在上方加两个圆点,即表示高两个八度,在下方亦是如此,依此类推。","id":""}],"text":"","id":"doxcnu6Acw6o0QOKKGwRGdkHsJd"},,"attrs":{"height":99,"note":[{"type":"text","text":"音调\u0026简谱","id":""}],"url":"{{image_domain}}tos-cn-i-qvj2lq49k0/916921f451474d3abdd65f1893c2cf48","width":640},"text":"","id":"doxcni8MkSymog2GoaeUMwYF5Kg"},{"type":"paragraph","children":[{"type":"text","text":"不带点的音符称为“中音”,带高音点的音符称为“高音”,带低音点的音符称为“低音”。","id":""}],"text":"","id":"doxcnCUGgsSE0AS00Q12NwxZFEg"},{"type":"paragraph","children":[{"type":"text","text":"为了演奏(演唱)的方便,一般将乐曲音域的中音区记成不带点的音符(中音),这样可以减少一些记谱符号,看得更清楚。","id":""}],"text":"","id":"doxcnmekEeSkqsqy8S6IMzW3AUg"},{"type":"paragraph","children":[{"type":"text","text":"对应的音区称之为低音区、中音区、高音区。在音符上标点,在演奏乐器或者唱歌的时候找准音的高低。","id":""}],"text":"","id":"doxcnsCMKE82mu28mmGDaGm8mWf"},{"type":"paragraph","children":[{"type":"text","marks":[{"type":"strong"}],"text":"延音线","id":""}],"text":"","id":"doxcn28mm2Gcauy2q8SFrJ0gXWb"},{"type":"paragraph","children":[{"type":"text","text":"音符后面有一根短横线。这个叫做延音线,意思就是唱到这里得拖长音。比如:第一句鸳鸯双栖蝶双飞~(此处用波浪表示延长)。","id":""}],"text":"","id":"doxcnCEa0CqmAGmQwSAvUF3cCOb"},{"type":"paragraph","children":[{"type":"text","marks":[{"type":"strong"}],"text":"连音线","id":""}],"text":"","id":"doxcnyg6cqkMIcKQmeUYVN7fZfc"},{"type":"paragraph","children":[{"type":"text","text":"两个音符上面有一个弧线叫做连音线,一般是给唱歌看的,表示一个字要对应几个音,中间不断开。意思是说,看到弧线就要将对应的字的读音分解开始唱。","id":""}],"text":"","id":"doxcnYOqK0eeMiIeueox911BINb"},{"type":"paragraph","children":[{"type":"text","text":"比如第一句:鸳鸯双栖蝶双飞,“蝶”字上有连音线,蝶的读音大家知道,蝶=d+ie。","id":""}],"text":"","id":"doxcnaCaWuWKYUyw2CwIsr8aj2c"},{"type":"paragraph","children":[{"type":"text","text":"所以唱的时候要这么唱:蝶~(拖ie的音)","id":""}],"text":"","id":"doxcnssUyIw6i6kgas7TqHPIMKf"},{"type":"paragraph","children":[{"type":"text","marks":[{"type":"strong"}],"text":"休止符","id":""}],"text":"","id":"doxcncwMcEEW0eoiKkdhGtux0Zg"},{"type":"paragraph","children":[{"type":"text","text":"在简谱中表示音乐的休止(停顿)的符号称为休止符。简谱的休止符用O来表示。吹奏乐器的时候,看到休止符,就可以停止吹奏,然后等下一段节奏再吹奏。","id":""}],"text":"","id":"doxcngggAkGw2c6uYgRyAUZxWwf"},{"type":"paragraph","children":[{"type":"text","text":"休止符时值的长短与音符的时值基本相同,只是不用增时线,而用更多的O来代替,每增加一个O,表示增加一个相当于一个四分休止符的停顿时间,O越多,停顿的时间越长。在休止符下方加记不同数目的减时线,停顿的时间按比例缩短。常用休止符的写法、休止时值如下:","id":""}],"text":"","id":"doxcncIUCkI2Uw8Ck9sF8t9yGyp"},,"attrs":{"height":105,"note":[{"type":"text","text":"音调\u0026简谱","id":""}],"url":"{{image_domain}}tos-cn-i-qvj2lq49k0/0054bae3df644980bfb001345fc4def0","width":640},"text":"","id":"doxcnWayMMaakIGg6kLuUMyGXne"},{"type":"paragraph","children":[{"type":"text","marks":[{"type":"strong"}],"text":"小节线与终止线","id":""}],"text":"","id":"doxcnsIaiOoEicIWG4Rp2azP8Hf"},{"type":"paragraph","children":[{"type":"text","text":"在强拍面前,用来划分节拍单位的垂直线叫小节线。用来表示全曲结束的两条小节线,右边略粗于左边的一条叫终止线。","id":""}],"text":"","id":"doxcnkUomYEoqEkIIWmY4N1Fnid"},{"type":"paragraph","children":[{"type":"text","marks":[{"type":"strong"}],"text":"速度","id":""}],"text":"","id":"doxcn2aOGYCu0i00IIHuCEqLewc"},{"type":"paragraph","children":[{"type":"text","text":"有两种,一种是文字表示的,如“快速”、“中速”、“慢速”等等。一种是直接告诉你的。比如《女儿情》调号下面的表示为每一分钟唱70个4分音符。","id":""}],"text":"","id":"doxcn0MMCeC0uWKqUAxHMxCANEh"},{"type":"paragraph","children":[{"type":"text","text":"以上就是学简谱时都会学到的基础知识,相信大家对简谱有了更清晰的认识。当然这些知识只是乐理的入门部分,在学习过程中还会接触到更详细的学习内容,如果大家在这方面想了解到更多内容或者有疑问的地方都可以给老师留言,会一一帮大家解答的。","id":""}],"text":"","id":"doxcnU0KUKomWUAygLlHDVA6qj4"},,"attrs":{"height":212,"note":[{"type":"text","text":"音调\u0026简谱","id":""}],"url":"{{image_domain}}tos-cn-i-qvj2lq49k0/0b7f887b53294480bde68947b7298a76","width":1064},"text":"","id":"doxcnuW8qy2gk0YcGaUhmrPV7Gh"},{"type":"heading","attrs":{"level":1},"children":[{"type":"text","text":"指法","id":""}],"text":"","id":"doxcniaQw46U8I2Sogtg5LB0Mih"},{"type":"paragraph","children":[{"type":"text","marks":[{"type":"strong"}],"text":"手指的按法","id":""}],"text":"","id":"doxcnYeikySCigmAcInaT2hRuBf"},{"type":"paragraph","children":[{"type":"text","text":"好比手中握着球,稍微弯曲,各手指不要伸的直直的,要有弯弯的感觉。按键时手指不要离开,可能的话轻轻摸着键。","id":""}],"text":"","id":"doxcng4GoMYYMkAKkq8C1ARkNLh"},{"type":"imageList","children":[,"attrs":{"height":287,"note":[{"type":"text","text":"指法","id":""}],"url":"{{image_domain}}tos-cn-i-qvj2lq49k0/215e669d7d46444e8b830752f5bf8352","width":718},"text":"","id":"doxcnGKEouGqQ2AO0sLeymkytke"},,"attrs":{"height":793,"note":[{"type":"text","text":"指法","id":""}],"url":"{{image_domain}}tos-cn-i-qvj2lq49k0/c41f04a82d4b4fd1a6368f3c4d37f144","width":385},"text":"","id":"doxcnimS20A0SAkiUQJb0picvDd"}],"text":"","id":"doxcn86KEiASWkKUKIdd17DgNUe"},{"type":"heading","attrs":{"level":1},"children":[{"type":"text","text":"曲目","id":""}],"text":"","id":"doxcn86KEiASWkKUKIdd17DgNUe"},{"type":"paragraph","children":[{"type":"text","text":"《茉莉花》、《暗香》、《血色浪漫》、《天空之城》依次从简单到难度比较高,是练萨克斯必备的经典曲目。","id":""}],"text":"","id":"doxcn4mG6uEue4gS2qeWj8EkpDf"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"《茉莉花》","id":""}],"text":"","id":"doxcnEwGeSw4gKqQkAV1hnAc9Kd"},{"type":"paragraph","children":[{"type":"text","text":"萨克斯本身声音悠扬清亮,而这首乐曲把缥缈缠绵的意境表现得相当到位,在音质不好的播放器上往往会将声音表现成刺耳的高音,意境皆无。面对难以完美再现的萨克斯,尤其是清纯悠扬的清音效果和抒情的高音时,应该表现的完满而到位。层次感清晰分明,音质柔和不显刺耳,却极富穿透力。 ","id":""}],"text":"","id":"doxcnUqWwEEKO08I4mEZU3WSR4I"},,"attrs":{"height":361,"note":[{"type":"text","text":"《茉莉花》","id":""}],"url":"{{image_domain}}tos-cn-i-qvj2lq49k0/95d61a35813e47e282342da61781b910","width":893},"text":"","id":"doxcn8SwOuAK8KsQec5aiBCcQbg"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"《暗香》","id":""}],"text":"","id":"doxcnw4O20s6QYWS8uM2Y1khQBc"},{"type":"paragraph","children":[{"type":"text","text":"","id":""}],"text":"","id":"doxcnOaQMeOUeO2wuiMEBXPNexb"},,"attrs":{"height":698,"note":[{"type":"text","text":"《暗香》","id":""}],"url":"{{image_domain}}tos-cn-i-qvj2lq49k0/998a88cf0c2244e388ef4bdf9a981e42","width":778},"text":"","id":"doxcnEWEKuKO6WkGcyZ8YlBWWsb"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"《血色浪漫》","id":""}],"text":"","id":"doxcncQMS6soEea88kvMlY9OA9g"},{"type":"paragraph","children":[{"type":"text","text":"此曲注意每个乐句的气流控制,掌握好正确的吸气方法。在演奏时略带喉音,乐句尾音稍带滑间,还需掌握好超高音的演奏。","id":""}],"text":"","id":"doxcnYMsWocW4AUMcccHkHNmGRj"},,"attrs":{"height":723,"note":[{"type":"text","text":"《血色浪漫》","id":""}],"url":"{{image_domain}}tos-cn-i-qvj2lq49k0/216177fb3d5a423ab28e01bb9bd82f64","width":497},"text":"","id":"doxcnKkwUQQOeEqKsJJXZHnjHuP"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"《天空之城》","id":""}],"text":"","id":"doxcnKg44mOomWukyqQnABkWNCe"},{"type":"paragraph","children":[{"type":"text","text":"用萨克斯演奏的《天空之城》带着一种天然的恬静,让人们陶醉其中,心里便有了一份宁静,和恩雅的音乐一样,能够洗涤内心的躁动,收获一份久违的静谧,不再为了一些琐事闹心。","id":""}],"text":"","id":"doxcnCsAG2GCm08UqKq1qJs9sqc"},,"attrs":{"height":685,"note":[{"type":"text","text":"《天空之城》","id":""}],"url":"{{image_domain}}tos-cn-i-qvj2lq49k0/8e9278f8de83470e98a52804dcefe30a","width":563},"text":"","id":"doxcnw46mukaCQW04OQThVrWa8f"},{"type":"heading","attrs":{"level":1},"children":[{"type":"text","text":"保养","id":""}],"text":"","id":"doxcnk8AeS26UyIaAHSngYaVQob"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"保持干燥","id":""}],"text":"","id":"doxcnSagugGc8eUiWie8LNtFZDe"},{"type":"paragraph","children":[{"type":"text","text":"每次吹奏完后总会有一些水份留在管内,不及时清理会腐蚀管体。在潮湿多雨的地区保持乐器干燥尤为重要。","id":""}],"text":"","id":"doxcn4ss8goQ2QiMmeNWgcJ9Thb"},{"type":"paragraph","children":[{"type":"text","text":"乐器使用完毕后,应取下弯脖,把管体内的水分倒出来,用柔软吸水的布简单擦拭下喇叭口处的水分,然后放在通风处15-20分钟,让其自然晾干。用过的清洁布不要直接和乐器放在一起,防止潮气滞留二次腐蚀乐器;通布条和口水棒也不建议使用,通布条来回擦,容易对皮垫的密封性造成很大的影响,漏气了或者卡在萨克斯里边就难办了","id":""}],"text":"","id":"doxcnGw0YYAuqWmw4EjCW66Yi9b"},{"type":"paragraph","children":[{"type":"text","text":"口水棒是不吸水的材质,口水有碱性,用它等于用碱2次腐蚀管体加速氧化,也不建议使用。","id":""}],"text":"","id":"doxcnaOwEmsC4y2mekLyQtqkfDd"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"保持清洁","id":""}],"text":"","id":"doxcnWyMssO68QUMM6VyDk0Fpxc"},{"type":"paragraph","children":[{"type":"text","text":"萨克斯管结构复杂,音孔和音键多达数十个,不定期清洁容易在键轴、键杆和弹簧等部位积攒灰尘和污垢,会严重影响乐器机械性能的发挥,给演奏带来困难。","id":""}],"text":"","id":"doxcnEUekK0IueSysA581uynR7f"},{"type":"paragraph","children":[{"type":"text","text":"吹奏完乐器后,应用清洁布擦拭管体表面的指纹和汗迹,否则容易侵蚀管体,加快萨克斯表面的氧化;使用萨克斯时间长了,键柱之间和键杆下面如果有浮尘,可用0.5寸左右的小毛刷轻轻打扫或者可以用卫生棉棒来小心清理。建议1-2周一次即可。","id":""}],"text":"","id":"doxcnMq8MCosCkuyMCKGqgy7Byb"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"哨片保养","id":""}],"text":"","id":"doxcnYAYcmkqEAIg6OKLx8kwgEb"},{"type":"paragraph","children":[{"type":"text","text":"吹奏完毕后,哨片用后要取下,擦去水分,放入哨片夹内,妥善保管。短时休息时,一定要套上笛头帽。","id":""}],"text":"","id":"doxcnkwuGw6iMYwu24hrKfbKPTh"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"笛头保养","id":""}],"text":"","id":"doxcniWE2Kmk8Scy6grRkMFdEMf"},{"type":"paragraph","children":[{"type":"text","text":"笛头每次用完后用水冲洗干净,再用软布擦干即可,也可直接擦干净。","id":""}],"text":"","id":"doxcnS8aWGCqGi22YEYy2JxRvjb"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"键垫保养","id":""}],"text":"","id":"doxcn62yWGOCWsSGsAlDLaLTZzf"},{"type":"paragraph","children":[{"type":"text","text":"吹奏完毕后键垫有潮湿的情况出现,会硬化减少使用寿命;可用吸水纸夹在键垫与音孔之间。手按键子,将水分吸干,保持各部分的干燥,一定不要让纸屑留在音口上以免造成漏气现象。","id":""}],"text":"","id":"doxcnqQCOUQAaCgoiwf09JDZ92d"},{"type":"heading","attrs":{"level":2},"children":[{"type":"text","text":"按键灵活","id":""}],"text":"","id":"doxcnoGmKO0WmEOuc8RuP1fCiLe"},{"type":"paragraph","children":[{"type":"text","text":"萨克斯管音调的变化主要依靠音键和音孔的变化来实现,因此尤其音键应具备高度的灵活性。所以应定期滴专用键油以增强它的灵活性并防止锈死。","id":""}],"text":"","id":"doxcnUkcU86wgeO0wohkHl756nh"},{"type":"paragraph","children":[{"type":"text","text":"每隔2个月在萨克斯各键连杆处注入萨克斯润滑油,不要太多,防止键油流到管体上导致漆面提早氧化,滴完后活动几下键子使油充分渗入,用软布把表面多余的油擦干净即可。","id":""}],"text":"","id":"doxcnow6sOs4kO6y4yaCxJx01Ke"},{"type":"paragraph","children":[{"type":"text","text":"乐器上固定各键连杆的各个螺丝,要进行经常性的检查,如有松动将其拧紧。由于萨克斯的泛音孔很小,较易堵塞,所以要定期清理。根据个人使用情况1-2年要到萨克斯维护中心做一次保养;如果萨克斯长时间未用,开始用的时候,需要做一次检查以及保养。","id":""}],"text":"","id":"doxcnwM08yWoyiU2u8xu7sXlFed"},{"type":"paragraph","children":[{"type":"text","text":"手应该拿在萨克斯没有按键的部分,比如喇叭口或者上侧弯脖接口处,或者手拿指托处,一定要牢靠、稳妥;并且乐器放回箱包后,一定记得拉上箱包拉链,避免不小心乐器的滑出造成不必要的磕碰。","id":""}],"text":"","id":"doxcnSCWImeg2kwEs4esu37RTBc"}]%3C%2Fhowto_content%3Eby329x1500s参数
非常强悍。
HKC GX329S显然是为游戏爱好者量身定做,能以极其快速流畅的画面让你驰骋《绝地求生》、《CSGO》、《战地5》、《使命召唤》等各种枪战类游戏,这一切均得益于HKC GX329S能够提供高达200Hz的显示器刷新率。对于那些需要高速行驶、讲究操作反应时间的游戏里,刷新率就是获胜的命脉。相比市面上常规的144Hz电竞显示器,GX329S能够在相同时间内提供更多的游戏画面,以超高的刷新率在游戏中避免画面撕裂、延时、运动模糊等不佳体验,让玩家在游戏中能够畅享极致的画面流畅度。
bym36g
通俗点说就是6G螺纹比6H螺纹大,根据螺距不同,约大0.017mm到0.1mm。例如,螺距0.5,大0.02;螺距1.75,大0.034;螺距8,大0.1。
内螺纹检验是用螺纹塞规,一套两件(一个通规,一个止规),螺纹合格判断规则:通规能旋入内螺纹,止规最多只允许旋入内螺纹2扣。(可查GB/T3934,普通螺纹量规 技术条件)
本网站文章仅供交流学习 ,不作为商用, 版权归属原作者,部分文章推送时未能及时与原作者取得联系,若来源标注错误或侵犯到您的权益烦请告知,我们将立即删除.