This delightful two-disc, 50-track set attempts to outline the origins of the 1960s garage and trash acts, and it’s a superb playlist that crackles with a kind of loose and raw kinetic energy, with classic sides and songs by Ma Rainey (“See See Rider”), Howlin’ Wolf (“Smokestack Lightning”), Dale Hawkins (“Susie-Q”), Link Wray (“Rumble”), the Champs (“Tequila”), the Shirelles (“Boys”), and John D. Loudermilk (“Tobacco Road”). It’s a great playlist. It’s a great playlist for a very cool party in the garage. But are these tracks the roots of garage and trash? You could listen to the early singles of the Beatles and the Rolling Stones and probably get just as close to an epicenter. Some things are just in the air — like electricity, and electricity and amped guitars are the real reason any of it happened. This is a wonderful set, whether it’s the roots of anything else or not.