That opening hit of Kokushi Tenshi just immediately transports you to ancient Pars with sweeping strings and woodwinds that scream early 90s anime cinema. The Heroic Legend of Arslan II's movie soundtrack carries serious weight for a 1992 OVA production.
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Ikoku Sakyuu paints these desert landscapes with Middle Eastern-flavored instrumentation that feels genuinely evocative, not just window dressing. The suite of proverb tracks is such a cool structural choice. Man proposes, God disposes through All is Vanity each carry distinct moods that mirror the story's philosophical weight.
Rakujitsu Hika hits hardest though, this sunset elegy that just sits in your chest. If you watched the first Arslan OVA and never tracked down this sequel score, you're missing the emotional peak of the series.