Quartet
A composition for four solo performers. String Quartet is composed of first and second violins, viola, and vio'oncello. Piano Quartet is composed of violin, viola, violoncello, and piano. Vocal Quartet may be either for male or female or mixed voices.
Quartett (Ger.) (kvar-tet'), Quatuor (Fr.) (qua-too-or), Quartetto (It.) (quar-tet-to).
Quartet in English, sometimes spelled quartette.