It's called BeepBox, and it's basically Chrome Music Lab except a lot more... uh... Yeah, just a whole lot more! (more instruments, more drums, more freedom!) I discovered it while watching a video on making music for non-musicians and I only had to search 'beepbox' to find it! When I got to the site, of course I had to remake Dance Slow-Mo on it! I made it in only a few minutes! Expect me to use it more often or something...
