Valves.
Indefinite pitch.
Fingertip
Struck with batons
Shaken instruments.
Bevelled aperture
Hit with sticks
Scratched instruments.
Mouthpiece
Struck together.
Bowed instruments
Bell mouth.
Single-reed
Plucked instruments.
Keys
Scraped.
Pistons.
Struck
To rub
Definite pitch
Plectrum
Double reed
