Audio director Emily Ridgway worked closely with composer Garry Schyman in developing the score. They had previously worked together for the audio on the retro-inspired 2005 video Destroy All Humans!. Schyman's experience with film scoring lead to natural choice by Ridgway for BioShock for creating an atypical video game soundtrack with emphasis on "No Electronic Music". Some parts of the score is described by Schyman as "aleatoric" with some parts of the composition cuing up in response to the player's chance maneuvers and encounters.