Today, thanks to Jammit, there's not only an app for that. There's an app that makes that process so much more helpful.
Created by hard rock producer Scott Humphrey, Jammit essentially updates the time-honored tradition of learning a song by listening to it over and over and over again. Users can isolate individual parts from recordings, view them as notation or tablature, loop them, and even slow them down without affecting their pitch. Whether you're trying to learn chords or solos, the app speeds the process of learning pop songs.
It also offers an unexpected wrinkle similar to those offered by companies like MXP4: the ability to insert your own parts into songs. Have you ever wanted to rap over Horse With No Name"? Play a totally different bass line on Marquee Moon"? Add different attack to Stairway to Heaven"'s guitar solo (you blaspheming bastard)? Now you can, and you can e-mail the results to anybody.
Where so many other music education apps and so many music interactivity apps have seemed fairly limited, Jammit really does seem potentially revolutionary. It's making a formal debut tomorrow at Mac World in San Francisco. Remixers everywhere should brace themselves.