As usual, great choices and explanations from this video game OST focused website. There's a lot of awards and details, so please check the links (one for each category) for the write-ups, as well as the other nominations (the OP was extremely long otherwise).
Best of the best:
Organizations of the year:
Albums of the year:
Audio of the year:
Artists of the year :
Scores of the year:
Really varied awards!
Best of the best:
- Score of the year - Octopath Traveler
- Artist of the year - Yasunori Nishiki
- Audio of the year - "Main Theme" from Octopath Traveler, and "Always Been but Never Dreamed" from Tetris Effect
- Album of the year - Xenoblade Chronicles 2 Original Soundtrack
- Organization of the year - Procyon Studio
Organizations of the year:
- Outstanding achievement - Music Studio : Procyon Studio
- Outstanding achievement - Record Label : Basiscape Records
Albums of the year:
- Best Album - Soundtrack CD : Xenoblade Chronicles 2 Original Soundtrack
- Best Album - Official Arranged Album : Symphonic Suite "Suikoden"
- Best Album - Fan Arranged : Children of Termina
- Best Album - Chiptune Album : Nighty Night Stories - scythe
- Best Album - Original Album : Across the ridge to heaven – ASTURIAS (Yoh Ohyama)
Audio of the year:
- Outstanding Achievement — In-Game Music: Tetris Effect
- Outstanding Achievement — Main Theme : Octopath Traveler Main Theme (Octopath Traveler)
- Outstanding Achievement — Vocal Theme : Always Been But Never Dreamed (Tetris Effect)
- Outstanding Achievement — Instrumental Theme (Non-Main Theme) : Scattered and Lost (Celeste)
Artists of the year :
- Outstanding Artist — Eastern Composer : Yasunori Nishiki
- Outstanding Artist — Western Composer : Bear McCreary
- Outstanding Artist — Independent Composer : Lena Raine
- Outstanding Artist — Newcomer: Berlinist
- Outstanding Artist — Soloist : Eivør Pálsdóttir
- Outstanding Contribution — Ensemble : Koichiro Muroya Strings
Scores of the year:
- Best Score — Traditional / Acoustic : Octopath Traveler
- Best Score — Orchestral / Cinematic : Monster Hunter: World
- Best Score — Rock / Electronic / Hybrid : Tetris Effect
- Best Score — Chiptune / Retro : Celeste
- Best Score — Western Localisation : The Alliance Alive
- Best Score — Fan Favorite : Octopath Traveler
- Best Score — Writers' Choice : Fighting EX Layer and Into the Breach
Really varied awards!