Crisis Core -Final Fantasy VII- Original Soundtrack Catalog # Composers Arrangers Producers Publisher CD Info Length Release date Crisis Core -Final Fantasy VII- Original Soundtrack is the complete soundtrack to Crisis Core -Final Fantasy VII-. The music Is primarily composed by Takeharu Ishimoto, with a few tracks provided by Kazuhiko Toyama. It includes remixes of various songs from the original Final Fantasy VII score and from the Last Order score. The theme song is titled "Why", performed by Ayaka.