Brass instrument can be very useful for a 1st or 3rd horn player, who uses the F side less. Another approach was the addition of two sets of slides for different parts of the range. Some euphoniums and tubas were built like this, but today, this approach has become highly exotic for all instruments except horns, where it is the norm, usually in a double, sometimes even triple configuration. Some valved brass instruments provide triggers or throws that manually lengthen (or, less commonly, shorten) the main tuning slide, a valve slide, or the main tubing. These mechanisms alter the pitch of notes
Tuba Tuba The tuba (; ) is the largest and lowest-pitched musical instrument in the brass family. As with all brass instruments, the sound is produced by lip vibration into a large mouthpiece. It first appeared in the mid-19th century, making it one of the newer instruments in the modern orchestra and concert band. The tuba largely replaced the ophicleide. "Tuba" is Latin for 'trumpet'. In America, a person who plays the tuba is known as a tubaist or tubist. In the United Kingdom, a person who plays the tuba in an orchestra is known simply as a tuba player; in