What was the purpose of alto saxophone?

The primary purpose of the alto saxophone is to produce music. It is a versatile instrument that can be used in a variety of genres, including jazz, classical, and contemporary music. The alto saxophone is commonly used for improvisation, allowing musicians to explore and express their musical creativity. In jazz ensembles, the alto saxophone often takes on a lead role, with players utilizing techniques like bends, glissandi, and vibrato to create unique and emotive performances. In classical music, the alto saxophone is primarily used in concert bands and chamber ensembles, supporting other instruments and adding depth to the overall sound.