>>1947I think that my favorite Anime soundtrack is probably Akira's. I love the prog, traditional, and ambient fusion that the soundtrack has. Geinoh Yamashirogumi's entire discography is fantastic as well. Akira's soundtrack essentially has two sibling albums as well. Ecophony Rinne and Ecophony Gaia. Rinne is my favorite ambient album. If anyone enjoyed Akira's soundtrack I highly recommend listening to these if you haven't done so already.
Akira sample:
https://files.catbox.moe/hfrn06.flacRinne:
https://www.youtube.com/watch?v=Yvm2PUgP9_sGaia:
https://www.youtube.com/watch?v=jS1wkJqU3G0My second favorite is probably Turn A Gundam's soundtrack. I believe that it is by far Kanno's best. The soundtrack is nostalgic and refreshing. The mix of British folk sounds and wide open Coplandesque feeling pieces perfectly fit the show's Amerian setting.
https://files.catbox.moe/5lhndj.flachttps://files.catbox.moe/w6ef1x.flachttps://files.catbox.moe/jhgmla.flacHonorable mention to Giant Robo's grand and sweeping score as well.
https://files.catbox.moe/f3h1x2.flachttps://files.catbox.moe/uzd37n.flachttps://files.catbox.moe/0opsov.flac>>1988Utena's soundtrack is fantastic. It got me into listening to Japanese Zeuhl and brutal prog like ruins and Koenji Hyakkei.
https://www.youtube.com/watch?v=W36iAoH_FSshttps://www.youtube.com/watch?v=EyUnpIIK2FAThe rest is amazing too. Clear and crystalline melodies that enhance the show a great deal, but never feel obtrusive. Really is peak BGM. I feel that the Pokemon anime had a soundtrack of a similar quality for a time.