RiffMaster Pro promises to help you master any guitar solo or guitar riff faster than ever before. Riffmaster Pro is software you download to your PC, MAC or iPhone. It can instantly slow down your favorite music and MP3 without changing the pitch, allowing you to play along with the musician of your choice at a much slower learning speed. In no time you’ll be able to quickly learn that tricky riff or solo. Riffmaster Pro comes with a 60 day return policy.