Im looking at buying an iPad mostly to use when i play music live. My set up would be my guitar and vocals live and have the iPad providing the remaining backing tracks(drums, bass, etc). Ive see a few people do that set up without an iPad and i have the capabilities to do so with my macbook, id just prefer a simple set up. Any suggestions as to apps to use? Is garageband the only app worth using for music creation and production?