Actually this was really cool and would be fun to play with.
The technology allows you to create "Automatic Accompaniment for Vocal Melodies". When I first saw the "Generate music from your voice" I was hoping someone created some technology that would allow one to just read the lyrics and have the system synthesize the singing part.
It'll be interesting if the tech progresses enough that people can be entirely self produced with little instrument playing ability. I wonder if that would change the music scene much?
Kinda fun looking. Seems like it relies pretty heavily on singing well and on pitch without accidentally changing key. One hour of American Idol'll point out how few people have that ability.
Feature request: Guitar, organ etc.... think casio piano - in tune with your voice. (perhaps a add on to all electric keyboards?)