where can i find the soundtrack???

okay so there's a list of the songs used in the movie, and I pretty much know where to find most of them, but what's really digging my arse are the lesser known (wordless) ones that were playing in certain scenes. for example, like when alma is wearing the rose in her hair the first time, or daydreaming about running with artur in the woods, and even when she's in the bathroom masturbating. It's avery innocent tone, with piano accompanying it that add to the 'innocent nymphet' sort of taste.

here's a clip(s) with that song:
https://www.youtube.com/watch?v=X9WhFaB8KQA
https://www.youtube.com/watch?v=3HLR6w90-wA

apparently, i found out the name of the composer of the soundtrack [note: NOT the creator of the list of the songs that were used, but the actual theme songs], who is Ginge Anvik. I would love to find his contact and send him a question if i could get a name of the song, or maybe even buy a copy, but im not sure if it seems rude or not. I just love this song very much