About TubaThe tuba (; Italian: [ˈtuːba]) 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.