Bowing the body of a string instrument (which can include bowing the [[sound box]], [[neck (music)|neck]], [[tuning pegspeg]]s, or [[scroll (music)|scroll]]) produces a quiet sound whose amplitude differs according to the place bowed, bow pressure and bow speed. At most the sound is a whisper of the [[horsehair|bow hair]] moving over the wood. A good example of this technique in a musical work is [[Helmut Lachenmann|Helmut Lachenmann’s]] [[Toccatina (Lachenmann)|Toccatina]], a piece written in 1986 for solo violin which uses many extended techniques.