The sousaphone is a member of the brass family and is pitched in B-flat, the same as a trumpet or clarinet. However, the sousaphone's large bell and long tubing give it a much lower pitch than other brass instruments. The lowest note on the sousaphone is the B-flat below the bass clef, which is about two octaves lower than the lowest note on a trumpet. The sousaphone has a wide range of notes and can play in a variety of styles, from classical to jazz to rock.
The sousaphone is a very versatile instrument and is used in a wide variety of settings, including marching bands, brass bands, concert bands, and jazz ensembles. It is also occasionally used in orchestras, although it is not a standard instrument in the orchestral repertoire.
The sousaphone is a beloved instrument in the music world and has a special place in the hearts of many musicians. Its unique sound and distinctive shape have made it an icon of American music.