Yes - you put a Hempeefree into Guitar hero, and it prints out the music on paper, and then plays it prefectly for you, and then you have learnt the entire tune, and are the bestest bass player evz!
Technology is wonderful!
Seriously though, I've been playing around with Audacity since it was suggested, and it's brilliant!
Coupled with AnthemScore, which converts the music to dots (left & right hand piano parts - bass being the left hand) - it's amazing!