Sung by Sayaka Kanda.
In Japan, the soundtrack actually launches one day before the game.
So in Europe, the game launches on November 1.
It's not a movie per se but that's how they call it in Japanese (and even in English actually).
I know I spoiled with the title, but it was obvious it was Atelier Ryza.
Atelier Ryza: Ever Darkness & the Secret Hideout. Just one month after its Japanese launch.
Out in Japan on September 26. Localization hasn't even been mentioned yet for the West to my knowledge.
It's a brand-new entry in the Atelier series.