Duet (Gary Burton & Chick Corea album)
WordNet
noun
(1) (ballet) a dance for two people (usually a ballerina and a danseur noble)
(2) A musical composition for two performers
(3) A pair who associate with one another
"The engaged couple"
"An inseparable twosome"
(4) Two performers or singers who perform together
(5) Two items of the same kind