Yeah, I have a TASCAM cd player, this thing were you can slow down the cd without altering pitch, change the key of the song, plug your guitar in to play it, a loop machine.... well, lets just say it has more gadgets than a Swiis-army knife... It's OK, 'cause when I was transcribing Sweet Child 'O Mine, I went on a whim to try it on that thing... It was awful. Slash is playing w/ a wahwah pedal, with some distortion, and when you slow it waaaaaaaay down, the pitch alters a bit, so it makes for a really hard time to get things done.... its more helpful than it is hindering though...