From Roni Music
If you are a musician who likes to learn new songs and techniques by listening to the same piece of music over and over but wish that the music could be played a little slower, then you will enjoy Amazing Slow Downer. You can repeat any section of the music at full speed, slow it down or even speed it up by stretching the music by -50% to 400% without changing the pitch! You can also change the pitch up or down in semi-tones or fine-tune in cents (100ths of a semi-tone) to suit your instrument.
This program works with your CD-ROM drive or any MP3 / Wave file on your harddisk and does all processing in real-time - no time wasted on recording or processing!
Change the speed of the music - from 20% (one fifth speed) to 200% (double speed) without changing the pitch.
Wrong key? Change the pitch in semi-tones - at full or changed 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, Wave, Windows Media Audio, Ogg, FLAC and AAC/M4A files on your computer in real-time.
Note: M4P files from the iTunes store is now supported.
Great stereo sound quality!