If you don’t love listening to vocal-free backing tracks of legendary rock songs, you’re not a real rock ‘n’ roll fan. The singing delivers the soul and the emotion, but the bass, drums, organ, horns, rhythm and lead guitar elements are the brick and mortar. Especially when it comes to some of the more guitar-y Rolling Stones songs like “Star Star.” I would pay through the nose if the Stones would issue CD’s of nothing but instrumental tracks from their biggest hits. Somewhat in the same vein, I’m thinking, as the Beach Boys’ “Stack-O-Tracks” album, which has been around for ages.