In music, accompaniment is the art of playing along with an instrumental or vocal soloist or ensemble, often known as the lead, in a supporting manner. The accompaniment can be performed by a single performer, pianist, guitarist, or organist or it can be played by an entire ensemble, such as a symphony orchestra or string quartet (in the classical genre), a backing band or rhythm section (in popular music), or even a big band or organ trio (in jazz). It may be considered the background to the foreground song melody. A piece of music may have a melody (tune) and an accompaniment track underneath. The music may be played on the piano with the right hand playing the tune and the left hand playing the accompaniment. The piano accompaniment might also be played on a different instrument.