Already own Circadian - The Complete Guitar Transcription? No worries - you won't have to buy the book again to be able to play along!  Just grab this Upgrade Pack and get straight to jamming!

Jam Track Upgrade Pack includes:

• Instant digital download pack containing remixed audio tracks of the entire album with guitar leads removed so you can play along! (MP3)

Please Note: This Upgrade Pack does not come with any tabs.