The music in HD Spectrum is based on 'Sector 9CE-4R', written and performed by 'I Dream no More', a member of The NULLL Collective. The original track is based on the 4th Moon of Xyth storyline.

Download the full track (10:52 minutes) in these formats : FLAC (29 MB) - 320 kbps mp3 (25 MB) - 128 kbps mp3 (10 MB)

Pages on the NULLL forum :
Ultranought forum.

Wiki pages:
Main page
Game manual
Overview map
Skills
Combat