An alto saxophonist is a musician who plays the alto saxophone, a member of the saxophone family invented by Adolphe Sax in the 1840s. The alto saxophone is known for its rich, warm tone and is commonly used in various music genres, including jazz, classical, and pop. It is pitched in E♭, making it a transposing instrument, meaning the music sounds a sixth lower than written. Alto saxophonists often perform in bands, orchestras, or as solo artists. They may play alongside other instruments, such as the trumpet, trombone, or piano, and can be found in ensembles like big bands or saxophone quartets. Notable alto saxophonists include Charlie Parker and Cannonball Adderley, who have significantly influenced jazz music.