Not bad....cool
Is cool stuff. I do music my own, and i do DnB, so is kinda cool to play around with it when bored, but it will be better if u include like a record button for a min or something, so we can replay what we do.
...Also, i have seen this kind of stuff before. Just a recomendation, if u do another version, it be fun if when u press a button some kind of graphics or something happens, to make it more interesting and different.