I never knew Derek existed until my wife bought me tix to EC at Madison Square Garden for Father's/b'day. I was awe-struck, Clapton was so on that night, but I got to learn who Derek Trucks was. Purchased everything he has recorded, and took my father to see him at the Nokia theatre in Times Square. The venue was great, Susan Tedeschi opened for him, nice husband wife combo.
My father, 68, is blown away by Derek as well as myself. Buy "The Derek Trucks Band Songlines Live" dvd for your son, and have him check out www.derektrucks.com as well as www.hittinthenote.com for DT merchandise from the site of the Allman Bros Band. I have tix for shows in May, and plan to get tix for the Hamptons show as well. Hope this helps. Peace