The best music tool I own!

If you are a jazz musician or wannabe this is the best $20 you will ever spend. I play multiple instruments and use the transposition feature to create charts for the other instruments. I am fond of using new beats for old tunes and this app lets me try them first - as bossa nova, as son montuno etc. The library is huge and the forums provide many more tunes. Get this!

Joseph Liberti about iReal Pro