- Two instrumentalists playing different instruments
- Two vocalists singing in harmony or counterpoint
- Combinations of an instrumentalist and a vocalist
Duets exist across various musical genres and traditions, offering different dynamics and harmonies due to the limited number of participants. These musical duos often rely on strong coordination, musical communication, and shared artistic vision to bring out the richness and expressiveness of a composition. Some examples of memorable duets include piano duos, guitar duos, vocal duets featuring male or female singers, and combinations such as piano and cello or violin and guitar.