I'm at work, so I''m going to apologize in advance for what might be a bit scattershot.
First and foremost: massive kudos to you. Releasing a record is no small feat!
That said, I think the ambition of your project is downright impressive. The music 'sounds' great, and the visual narrative is a clever touch.
As for the app—I'm a traditionally schooled musician who just so happens to love all sorts of adventurous, ambient music, so (once again) your mindset definitely struck a chord (pun intended!)
I've toyed with the idea of doing something similar to your release, albeit, way less adventurous. I'm a big 'book-on-tape' guy, and I love when there's a soundtrack underneath the narration.
I make my bread in the freelance world, but I've long dreamt of releasing a novel/book/collection. Publishing is not for the faint of heart, so the idea of an audio-book format is way more appealing to me. I've settled on recording some ambient, jazz-adjacent stuff and using it as a bed for some narrated prose.
And, that brings us to the feedback portion of my post...I wonder if it would be worth having an alternate version of your release where you have a narrator reciting over the music. I suppose the music is way more 'busy' than anything I record, so it may not work, but it'd be worth a try.
Otherwise, the odds of me 'watching' an hour long release are about nil. If I can't listen to it while I'm driving, then I can't listen to it.
TL;DR —beyond impressed, my friend.