This is cool! I think this would be much cooler in the hands of someone with more rhythm, though! I eventually turned the background music off because I was having a pretty hard time syncing my drumming to the same speed - but I think that is more a skill issue haha. Some of the samples were a little abrasive, and a few seemed to produce feedback that bled into other samples - but that might also be a problem with the me, not the tool. Overall - cool as hell! I don't feel equipped to evaluate this as a music-making tool, but as a jam entry, I LOVE it. Great job!
Here is my best attempt at making a tune: