Learn Happy Traum’s Bluesy Take on the Traditional Song “He Was a Friend of Mine” / The transcription on AcousticGuitar.com—accompanied by a video in which Traum’s son, Adam Traum, teaches his father’s approach—should give you a good sense of how the elder Traum played the piece and how you can borrow some of his ideas in working out your own bluesy accompaniments on a classic song like this.