Okay I think it's fixed - I'm testing for NOTE_ON with velocity of 0. Let me now if that solves it for you. I simulated a test of it because my midi controller just sends the regular NOTE_ON/NOTE_OFF messages!

Tried out your site - super clean interface. I noticed you are using the Salamander Grand Piano samples. For some weird reason I thought that those samples were pretty huge (50+ MB) but it loaded up pretty quick so great job!

Working as expected. Thanks for the fix! Now that I'm actually able to use it, it's pretty great. It's a really great experience, exploring to fill out the notes. I do get that rogue-like itch for immediacy, when I make a simple mistake, but it feels like having to wait gives a nice buffer. I also really like how configurable it is. That's something that is often overlooked.

Also, thanks for checking out the site! Yeah, I compressed the files down to .mp3, myself, and then only used a single velocity, so that they were around 2MB in total. They sound terrible, in comparison, but good enough for phone speakers and non-recordable jamming. You can find the same-sized, better-sounding .opus versions in all velocities on the repo's base-functionality branch, if you're interested in those samples.