The BioShock opening was difficult to rethink. The melody that Garry Schyman developed was already so beautiful that it felt hard to reimagine. The difficulty composing this piece was that it had to engage you, but not overtake the scene.
The background sounds of the video game include a man welding the tube-bridge, a whale, some short-wave radio static, and a conversation between a man and another man, which is important to the first playable scene in the game.
These couldn't be overshadowed, so I held back from some of the splendor and chord variations of the original scene and made the music flow to one central theme. You'll still hear the eerie theme that personifies Rapture and BioShock and expect to meet some unseemly characters via the music's haunting feel.