100 bucks, if you don't have one yet, get one. (that is if you have a computer you can play in front of). Best 100 dollars I have EVER spent.

Here's a link.

http://members.cox.net/sean_and_ali...inor_warmup.mp3 of one of the tones. My soundcard kinda sucks so there are some cackling noises, gotta upgrade that now. Anyway, it's basically just me warming up, in C Minor, don't be too harsh on critiqing my playing. I know I suck .