A violin has ___ strings

Both the ___ use valves to change pitch.

A ___ is an example of a tuned percussion instrument.

Saxophones and clarinets use ___ to produce sound.

The ___ plays the tuning note "A" for the orchestra, before a concert begins.

There are ___ keys on a piano.

Select all the string instruments.

The guiro is an example of ___ percussion

___ refer to the same instrument.

The ___ on the trombone is used to change pitch.

The ___ is the smallest and highest-pitched string instrument.