Before recording his first solo session as a leader in May 1957, John Coltrane had already established his mastery of the saxophone as an in-demand sideman.  He’d previously appeared on albums by Dizzy Gillespie, Earl Bostic, Johnny Hodges, Sonny Rollins, and Miles Davis; even after “graduating” to leader status, he continued to appear on albums by his many friends.  Now, Craft Recordings is collecting the best of Coltrane the sideman on a new collection.  Another Side of John Coltrane, due on CD, LP, and digital platforms on August 20, features his appearances…