Woah, this game is kinda ambitious! It is simple in its design, but does something very unique with its mechanics, and even features procedural art and music (yay!). I'm glad I stick around long enough to understand it.
Yeah because my main criticism would be that the game is complex to understand. In fact, it accumulates two concept that are difficult to grasp: controls, and the rules themselves. The wall of text at th beginning spends a lot of time explaining the later, but doesn't teach a lot about how to move. Which is inconvenient because this is the fundamental required to then understand the rules (they don't make sense if I don't know what my "character" is, and how it can "intersect" a "note"). For a while I was stuck at the center not getting how to move around, but then I was able to move but literally mashing the keys, and finally by fiddling enough I understood that "left" and "right" didn't literally mean left nor right, and that the second button had to be pressed while the first one is held in order to take effect. Only then was I able to have fun with the movements, which are actually pretty satisfying! But it took me maybe 10 minutes or more to really understand just what was going on on screen. :P
As for the rules of the game… Well I'm glad I know a bit of music theory, because even so I didn't get it all at first. ^^' I thought I was supposed to time my movements, or that the dot appearing on screen were the results of some of my actions (actually I'm not entirely sure how they appear, I say it's random but sometime it felt like it was reacting to something). Once I hit my first dot I understood that these were the one I had to intersect. But it was so tricky to achieve that I didn't pay much attention to the notes playing then, and rather than using a strategy I just randomly get them hoping to make a new triad. Which actually took not that long! So even if it's mostly a game of chance, it's manageable.
So yeah those were the struggles I had. I think the game lacks a good tutorial, and try to do 2 ambitious things at the same time. But I'm still impressed by what it offers! A procedural music hat varies in chords and pace depending on the player's action, rules based on music theory, abstract art procedurally drawn along the game, unique movement that take skills to be mastered… Once I understood how it works, I genuinely had a fun time with it! It's an incredibly creative entry. Despite its rough entry and raw presentation, I think it is full of cool ideas.