I saw Pat Metheny play a number of times with Gary Burton before he formed his own group. After about a year he went his own way and Lyle was in his first group. I saw their first appearance at Amazingrace in Evanston IL in July 1976. Amazingrace held around 400 people most of who sat on the floor. I actually have bootleg cassettes that I recorded in 1978 on a Nakamichi tied into the sound board. They sound awful!