パット・メセニー・グループ
In 1977, bassist Mark Egan joined Metheny, Mays, and Gottlieb to form the Pat Metheny Group. ECM released the album "Pat Metheny Group" in 1978 with songs co-written by Metheny and Mays. "Pat Metheny Group" marked Mays' first use of the Oberheim synthesizer, which became an integral part of the Group's sound. The group's second album, "American Garage" in 1979 reached No. 1 on the jazz chart at "Billboard" magazine.