Couple of things, Fred... You might want to check your audio routing on whatever you are recording this on. There's a sort of 'phasiness' to the sound that makes me think that you have some sort of feedback loop going on (or do you have a mike open and plugged in to the S900, picking up the speakers?).
The other thing is, especially for dancers and the like, you might try to watch your counts at the ends of phrases. You skipped a whole bar several times. BTW, I'm not trying to put this down, just trying to be helpful, if I can...