1)   MP3 Key shifter 2.0
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 change the key to suit your voice at the press of a button.
Backing Tracks, MP3 Backing, MP3 Editor, MP3 Key, MP3 Pitch, Pitch Change, Key Change, Pitch Shifter, MP3 Vocalist,