Vocal tracks sung in Japanese layered over dramatic orchestral arrangements give Soul Tide's character themes way more personality than most gacha games bother with. Each of the eight character songs has a distinct identity, plus instrumental versions of every track.
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"フラジールポピー" opens with fragile vocals over piano before building into a full pop-rock arrangement. "メテオライト" goes harder with driving percussion and soaring chorus sections. "微小綺想" takes a softer approach, almost like a lullaby with electronic undertones.
The instrumental versions aren't just karaoke throwaway cuts either, they reveal how much compositional work sits underneath the vocals. Nice production quality across the board. Worth checking out if you play gacha games for the music and not just the pulls.