Quartet
ensemble of four singers or instrumental performers
After Class
The Rag-Time Four
vocal quartet
woodwind quartet
The Australian Jazz Quartet
saxophone quartet
Talking Horns
barbershop quartet
string quartet
Dead Kennedys
29th Street Saxophone Quartet
Anonymous 4
Cathedral Quartet
Yeti
The Avalon Boys
Gaya Quartet
Le Deva
Big Four
Bones Apart
Flinders Quartet
Andrea Keller Quartet
Gas House Gang
Gold City
Opus Cuatro
flute quartet
Kingdom Heirs
Vanishing Twin
Metropolis
Official Secrets Act
Oh Darling
Old Time Gospel Hour Quartet
Peerless Quartet
The Four Esquires
The Perrys
The Romeros
King's Heralds
Take Four
Unity