Ex-Planetarium Sound Symphonium is the soundtrack album for Ex-Planet, composed by Neon and the Argie Bees. Currently unreleased, the album features all the tracks from the NES game, rendered in an enhanced fidelity, whilst still maintaining the same sounds that would be generated by the NES' sound chip, including manipulation of square waves, triangle waves, and a noise channel.
Select tracks are also presented in "reimagined" versions, where their MIDI data is played through other digital instruments, on the compilation album Soundtrack to Flye 'n' Frie: The 8-Bit Series — Reimagined.