Water key
Encyclopedia
A water key is a valve or tap used to allow the drainage of accumulated fluid from musical instruments such as trombone
s or trumpet
s. It is otherwise known as a spit valve.
Trombone
The trombone is a musical instrument in the brass family. Like all brass instruments, sound is produced when the player’s vibrating lips cause the air column inside the instrument to vibrate...
s or trumpet
Trumpet
The trumpet is the musical instrument with the highest register in the brass family. Trumpets are among the oldest musical instruments, dating back to at least 1500 BCE. They are played by blowing air through closed lips, producing a "buzzing" sound which starts a standing wave vibration in the air...
s. It is otherwise known as a spit valve.