Alto Saxophone

The alto saxophone is a member of the saxophone family, a group of instruments invented by Adolphe Sax in the 1840s. The tenor and the alto are the two most commonly used saxophones. The alto is pitched in the key of E♭, and written as a transposing instrument in the treble clef. Modern alto saxophones have a range from D♭3 to A♭5 (concert) and are therefore pitched one octave above the baritone saxophone. People who play the alto saxophone are known as "alto saxophonists" or "alto sax players".