It was an excellent year for Nintendo music fans with Breath of the Wild, Super Mario Odyssey, Octopath Traveler, Xenoblade 2, and the Kirby orchestra concert all being great and all getting proper releases. XB2 is my favorite but I've given them all good listens.
We also had some great indie soundtracks like Tangledeep, Deltarune, and Celeste. Hope to hear more Deltarune and the 'modern' arranged version of Tangledeep in 2019.
We also got our first proper JAGMO release last week in the form of
Symphonic Suite "SUIKODEN". A really great job by the arrangers and performers - I hope this release will encourage them to put more of their concerts on CD.
I'll also shout out
Sdorica -sunset- because it seems like nobody has heard of it. Low budget, but the music is well written, the orchestration is interesting, and all the tracks have endings (no loops). The composer seems to have taken a lot of inspiration from Hamauzu.