ETYM From Latin septem seven, like duet, from Latin duo.
1. A musical composition written for seven performers; SYN. septette.
2. A set of seven similar things considered as a unit; SYN. septette.
3. Seven people considered as a unit; SYN. septette, sevensome.
4. Seven performers or singers who perform together; SYN. septette.
An ensemble of seven musicians, or the music written for such a group. For example, Beethoven's Septet in E 1823 is scored for violin, viola, cello, double bass, horn, clarinet, and bassoon.