MP3 Key shifter

MP3 Keyshifter is a breakthrough piece of software that allows you to change the key of any audio track and save the modified song as an MP3 or WAV file. If you use backing tracks you can now change the key to suit your vocal range at the press of a button! The only way to be 100% sure that the key of a backing track is comfortably within your range is to sing along with it in real time.