Really nice design! It's super clever, and quite enjoyable. And it's also pretty great musically, although having the notes trigger on hover can be a little overwhelming after a moment. But I really enjoyed it overall!

Also, is the fact that hovering over an empty space bring the blocks back intentional or no?

I LOVE this concept.  Best concept I've seen yet, seriously this is so damn clever I'm jealous.

my only note would be this-- have the player right click the piano block rather than hover over it to play the note because the biggest obstacle to making this game a full game is how long it takes, and the reason it takes so long is I have to go back to notes I hit to re-listen to them because when I hear a NEW tone it pushes the old one out of my head somewhat.

SO GOOD. Damn.

Really interesting idea and execution. Would like to have a way to turn on/off listening for better navigation of the board. Good sound memory exercise!