在弦乐器的演奏上有一种所谓“颤指法(即”揉音“、”揉弦“)的,就是使左手和手指在按某音时微妙地撼动着,使音高因之时时稍有变动,发出来的声音便带着一种细小的颤动.细细加以观察,在机械方面讲,这样发出来的音不过是一种变形的颤音;所不同者,奏颤音时音高的变动常是一个全或半音,而在运用颤指所产生出来的音,则其音高的变动极其微小,所以两者的不同,仅仅是程度上的差别而已。奏某音时用颤指法,使所发的声音颤 There is a so-called ”flutter“ (”rubbing sound“, ”rubbing string") in the performance of a stringed instrument that subtly shakes the left hand and the finger while pressing a certain sound, Slight changes, the sound of the uttered with a small trembling.When carefully observed, in mechanical terms, so the sound is just a deformed tremolo; the difference is that when playing tremolo pitch Change is often a full or half-tone, and in the use of vibrations produced by the sound, then the pitch changes are extremely small, so the difference between the two is only a degree of difference. Make the sound tremor