The tuba is a large brass musical instrument known for its deep, rich sound. It is the lowest-pitched instrument in the brass family and typically has a wide bell and a long coiled tubing. Tubas are commonly used in orchestras, concert bands, and brass ensembles, providing a strong bass foundation for the music. Tubas come in various types, including the BB♭ tuba, CC tuba, E♭ tuba, and F tuba, each differing in pitch and size. Players use a mouthpiece to produce sound by buzzing their lips, and they can play a wide range of notes, making the tuba a versatile instrument in many musical genres.