AMAZING. Works with my Synology NAS drive, seamless and very fast DLNA/UPnP. Seems to me like this could be the first sniff of a Beat Saber type experience that uses my own music library (lord I hate the music in all these fitness apps, even when the app itself is fun) -- looks like you're analyzing the sound files and locating beats, synchronising graphic events to beats... no need for pre-fabricated beatmaps... just a thought.
What a great show... now it just needs more and more fx in its box of tricks, so there's less repeat? My faves were the starry skies, the glowing rain, and dancing fire sprites. Reflection fx in virtual water wd be cool, also virtual rolling waves (shades of Fantasia!). Growing fractals might be fun (plant-shaped, or frost crystals). Mind blowing to see the stars pulsing in time to a favourite tune... dreamlike. Great sense of enormous space.
What I wish for in my wildest dreams... more sensitivity to the tonal quality of the music, maybe allow the user to colour-map frequency? deep tones blue, high tones red, that sort of thing? Different patterns for quiet passages vs loud ones? Is it possible to detect timbral signatures like voice/violin vs piano/guitar? Seemed like the overall character of the animations was very similar even on completely distinct types of music, so that rock-n-roll looks pretty much like classical looks like jazz. And in even wilder dreams, I would love to interact with the graphics, "drawing" in the air with my hands and having the algorithm take those movements and reflect/kaleido them, or let me trail fire and shimmer, etc., or just "conduct" or influence the patterns. I wanted to reach out and become part of it, if that's in any way possible. Makes me want to dance with the light...
That sounds like I'm complaining that it's not cool enough, when it's already insanely cool... but it's more like I'm getting a glimpse of huge, dizzying new worlds of possibility for interacting with my favourite sound files-- music that means a lot to me. This app gave me one of those pure Wow experiences, unforgettable moment, jaw dropping, big dazed grin, like being a kid again. I certainly plan to watch the show in bed some time, what a way to relax before sleeping. Superb work. Please keep developing.