A duet is music written for two performers. The two parts may be equal or one may dominate while the other accompanies. Duets exist for virtually every combination of voices and instruments.

In opera and art song, vocal duets often portray conversation, conflict, or shared emotion. Instrumental duets range from simple teaching pieces to demanding concert works. The challenge lies in balance, blend, and precise coordination of timing and expression.

Performing a duet develops listening skills because each player must constantly adjust to the other. Rehearsals focus on matching articulations, dynamics, and phrasing so the two lines feel like a single musical thought. Many famous duets have become independent concert pieces that audiences request by name.

The intimacy of two performers creates a special connection both on stage and with listeners.