The amazing slow downer
http://www.ronimusic.com/
$39.95
Slows down the speed of the music - between -50% and 400% time-stretching without changing the pitch.
Wrong key? Change the pitch in semi-tones - at full or lower speed.
Out of tune? Adjust the pitch in cents (100ths of a semi-tone) to suit your instrument.
Real-time processing - all described above is done in real-time - just insert the CD and press the play button!
Also slows down MP3, AIFF, AAC/MP4 and wave files on your computer in real-time.
Great sound quality!
System requirements:
Mac computer, OS X 10.1 or higher
I don't think my computer is quick enough. It keeps stopping after a minute or so....but still worth a look.
scoot.