Taiko drums crashing into a full traditional Japanese ensemble, then these soaring erhu lines that make your phone speakers sound like a concert hall. Shigeru Umebayashi and the composing team pushed Onmyoji's second soundtrack volume way past what you'd expect from a mobile RPG.
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"Seiryuu no Theme" (Blue Dragon's Temple) builds this massive ceremonial wall of sound with layered percussion and woodwinds, while "Suzaku no Theme" (Radiant Wings) takes flight with strings that genuinely shimmer. "Gekisen" (Fierce Battle) goes full orchestral war mode with driving rhythms that make gacha pulls feel like life-or-death decisions.
The shikigami character themes each have distinct personalities. Thirty-four tracks deep and not a single one phones it in. If you assumed mobile game OSTs couldn't compete with console scores, Onmyoji exists to prove you wrong.