I had the same impression at first, but then just played around with it and found it was easy enough to make something that didn’t sound insanely bad, just by pressing random things. It made me want to explore more so I played around with it for a while and eventually kind of figured out what the different things do.

I’ve played with sequencers before and often got turned off by the insane amount of options, but this little demo seems like it has a nice balance to it – not too many options so it becomes overwhelming, and playful enough to afford experimentation. After a minute or two the lack of labels and instructions weren’t an issue for me any longer. Mileage may vary though, I guess.

I'm a big believer that interfaces without labels are antagonistic to users, and require you to know how it works in advance. This can be somewhat mitigated by popping up an instruction box when the user loads the site, but this doesn't do that either, nor does it have a clearly marked 'what the heck' button.

I have three sequencers (more if pocket operators count although they only sequence themselves) within arms length of me at the moment, plus a few different software sequencers I use in my DAW, so I guess I'm just a little more picky.