Last night I found a website/android app called Wolfgang's Vault, it has recordings of a ton of old concerts, some really great stuff. The Stones with Mick Taylor were a different band, blazing guitar. Listening to Steely Dan right now, can't wait to check out Neil Young, Priest, Janes Addiction, Sonic Youth, PFunk, The Allman Brothers, Floyd, The Who, Blind Faith, and a bunch of other bands. I'm tempted to pay the $50 to get the HD sound.