This is a really creative entry! There are a lot of rhythm-based puzzlers this jam, but yours stands out a lot in terms of mechanics. The amount of player agency in how to construct rhythms and solve puzzles is cool, and as a musician myself, I love how you actually get to create music in the process. (The music is great, by the way, and an excellent example of adaptive sound in a game.) The sort of surreal, minimalist visuals and sound create an excellent atmosphere around the puzzles, as well.
I agree with your sentiment re: tutorials - too many games dampen the sense of discovery by front-loading controls and explanations. However, I think you could have taught the mechanics better in the level design early on. It took me a few minutes before I figured out I was supposed to copy another pillar, and several puzzles after that to realize I got to choose my own rhythms at all. The puzzles became really interesting from there, but I wish I had gotten to experience that fun from the very start. That doesn’t mean a “tutorial”, of course - clever level design and visual telegraphing can often do a much better job - but with a complicated mechanic like those rhythm towers, you want to make sure the player gets it as quick as possible, so they can enjoy the puzzles!
(Side note - I believe movement was locked to 16th notes, which makes sense. I was having about a 16th of input lag, though, which meant it was hard to get into the rhythmic flow. That could just be my computer, but it’s something to keep in mind.)
Overall, one of the most unique games I’ve played this jam by far. You’ve found some unexplored ground here, I think. Well done!