thanks for showing us some banger songs! im currently listening to "Shine" while writing this xd. anyways, this game is really fun! i always loved those cassette tape sections in Celeste where the platforms would pop in and out based on the beat, and this game nails that mechanic! the game plays around with different beat times (both linear and irregular) to shift when the objects behave, creating this nice learning curve to carefully look and understand how things are changing based on the beat! also really like how there are collectibles in the game! adds a lot of replay value to it!
the visuals also look really nice! i also love how bouncy everything feels, from how the objects pop in and out based on the beat to how our little ghost friend bounces to the beat as well! though i think the film grain and the pixelization (and maybe the depth of field?) of the game might be a little bit overdone, but i like the idea overall, still looks nice! maybe it would have been cool to have an option to turn off the post processing effects (like in A Short Hike, though i never really did that), because i also like how smoother the visuals look in the thumbnail of the game (with the ghost and the radio) but that's just personal preference. though the colors used for the different realms look really good! the colors for both worlds are visually distinct from each while still fitting to what each of the realms are supposed to be, which is nice! also love the sort of ghostly shader that hides some of the tree in the ghost realm, really sells that environment more, great touch!
overall, i had a ton of fun! this was also a good speedrunning game given how short it is! unfortunately couldn't spend too much time on this, but fastest any% time i got was 41:87, unfortunately choked a little bit at the end (sub 41 and maybe sub 40 is probably possible if you have confidence of a god during the 2nd half of the game xd). really enjoyed it, great work!