A group of four people, especially musicians, performing together.
Mid 17th century: from italian quartetto, from quarto 'a fourth', from latin quartus.
- The string quartet performed a classical piece at the concert.
- The quartet's harmonious playing was a highlight of the evening.
- The vocal quartet sang a beautiful acapella arrangement.
- The jazz quartet entertained the audience with their improvisation.
- The brass quartet added a lively touch to the parade with their music.