Reply to automatic beat matching crossfader

Hi all! First post on the community .

I'm a computer programmer who dabbles in audio tech stuff. Have been working on a hack that uses echonest beat data to automatically beat match two pieced of music. This matches individual beats, not just the bpms. Thinking about also making it pitch shift automatically to place pieces of music in the same relative key automatically.

Any feedback welcome, thanks!

http://www.youtube.com/watch?v=FV0yN...eature=related