Sounds like you want iReal Pro to do for you things it isn't designed (or legally allowed) to do.
Remember, the more completely you "publish", provide, distribute or perform (live, video, written or using any other media) someone's copyrighted material with first obtaining permission, the more likely you are to have expensive legal issues.
more:
http://www.irealb.com/forums/newrepl...5319&noquote=1
That iReal Pro can display various (instantly transposeable) chord progressions AND generate musical rhythm-section practice tracks is very useful.
"Better" is often the enemy of "good".

)BOB
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