1·Different performer according to give musical performance the habit and the processing methods personally, also make the marking of the soft sound pedal have the obvious dissimilarity.
不同的演奏者依据个人的演奏习惯和处理方法，也使柔音踏板的标记有明显的不同。
2·The equipment professional bakelite and the metals double whistle head, satisfy to give musical performance the demand of the different melody style;