In the mid-'60s, he played piano in Children of Paradise, a group featuring folk performers Happy and Artie Traum. He was a member of the pop/rock group the Blues Magoos from 1969 to 1970, after which he was signed as a solo artist to Atlantic Records and made a couple of albums in the early '70s. While his performing career did not take off, his songs were recorded by such prominent performers as Bonnie Raitt and Linda Ronstadt. He was a founding member of American Flyer in 1976. The group made two albums, after which Kaz teamed up with Craig Fuller, also a member of American Flyer, to make a duo album for Columbia in 1978. ~ William Ruhlmann