This'll be making it a triple post, seems I'm the only one following the development of this single,
Well, here's the trailer of the upcoming movie, you can hear the song from about 1:05 (definitely it, says the title and artist/composer at the bottom of the screen when it starts). A lovely, sad, stripped down song, (
not a showtune :-p). Reminds me of Carnation, Ichijuku no Hana etc.
Might be a bit too basic/non-intrusive for some, but I can dig the stripped back approach. Vocally, nothing special, but nothing grating either. I still want to hear the full thing.
The movie itself doesn't look horrible either, albeit it not really my thing. Cinematography looked gorgeous.