 Saxophonist Archie Shepp recorded his first Impulse!album, Four for Trane, in 1964 after Coltrane recommended him to producer Bob Thiele,, and went on to release over a dozen albums on the label.Shepp, along with Art Davis, also appeared on an alternate take of the "Acknowledgement" section of A Love Supreme, which was released more than thirty years after the appearance of the original recording.