Ed Pearlman over at Musicteachershelper.com has done a great review of riffmaster pro.
Whatever your level of learning, it’s great to be able to slow down a recording to work with it. RiffMaster Pro is a new bit of software out (as well as a smartphone app), which I’ve had the opportunity to explore and review for you. I was impressed, and I suspect you and your students might be as well.
RiffMaster allows you to load a recording from your computer files or from a CD, and select any speed, up to 75% slower or faster, at which you’d like to listen to it, or to work with any portion of it. You can then, if you wish, save your selection as a new music file at the new speed. This function does not change the pitch of the music.
You can jump on over and read more here
The latest version of Riffmaster Pro 4 is better than ever!
Check out the software for Windows, Mac or even iOS at the download page