At the heart of the music is the jazz quartet.

On a recent Friday, a jazz quartet played in the bar.

A live jazz quartet will play at the later seating.

At the age of 21, Martin formed her own jazz quartet.

A jazz quartet played in what would become the gift shop.

There's nothing unusual about a jazz quartet that has stayed together for three and a half years.

In the late 1960s and early 1970s, Ricotti led his own jazz quartet.

He also performed in Toronto clubs with his own jazz quartet.

Night Ark is an instrumental jazz quartet formed in 1986.

He used to play the slide trombone in our little jazz quartet.