Just got the Stadium Arcadium: Special Edition Guitar Book with 2 CDs from Amazon. Apparently this project was conceived by John Frusciante. The tabs in the book are great and the CDs isolate John Frusciante’s guitar tracks and Flea’s bass tracks from the drums and vocals, which is super helpful for learning. I already put the CD tracks in my iTunes and dumped it on my iPad (I dig using Riffmaster Pro for playback). Working on Desecration Smile right now.