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在二胡教学中,一些学生对抠弦、压弦认识不清,或张冠李戴,或混为一谈,故而也就不能按乐曲的需要采用相应的方法表现音乐内容。为此笔者拟从以下几个方面分别对二者作些必要的阐述。 (一) 概念与方法抠和压均为利用手指的压扣动作来改变弦的张力,并导致音频变化的颤指方法。抠弦和压弦所产生的音频变化的特点是同为处于本音上方的不对称颤动音波。
In erhu teaching, some students do not understand the pull strings and the pressure strings, or are confused with each other. Therefore, they can not express the music content according to the needs of the music. To this end, I intend to make some necessary explanations on the two separately from the following aspects. (A) Concept and Method Pull and pressure are the use of the finger pressure-buckle action to change the tension of the string, and lead to audio changes in the method of vibrato. The characteristic of the audio variations produced by the pull strings and the pressure chords is the same as the asymmetric chattering sound above the sound.