Duet

A musical ensemble with more than two solo instruments or voices is called a trio, quartet, quintet, sextet, septet, octet, etc.

[2] In Renaissance music, a duet specifically intended as a teaching tool, to be performed by teacher and student, was called a bicinium (see Étude).

In addition to a standard vocal duet, some songs have been written to be heard as conversations; for example, "Baby, It's Cold Outside".

[10] Virtual duets may also be done live via video link (such as Shaun Escoffery duetting with the late Eva Cassidy's videotaped performance of "Over the Rainbow" in honour of the late Sir Terry Wogan)[11] or be constructed manually from two pre-existing recordings, generally where each singer/musician can have their own isolated audio channel in the form of a stem.

Theoretically, a duet could be constructed from any two pre-recorded singers or musicians so long as there are isolated audio channels from each artist.

A famous example of this is "Heart on My Sleeve" by ghostwriter977, who wrote and produced an original song using voice models of Drake and The Weeknd.