Complex sentence: Reign of Chaos, Jason Hayes, was hired to collaborate with Tim Larkin to write the original score for the game, which was later conducted by Timothy Williams and performed by the Northwest Sinfonia at Bastyr University.
Split into simpler sentences: Reign of Chaos, Jason Hayes, was hired to collaborate with Tim Larkin to write the soundtrack. The soundtrack was conducted by Timothy Williams, and performed by the Northwest Sinfonia at Bastyr University.