In an interview with the game's composer Yuzo Koshiro published in the Japanese book series Game Maestro in 2001, he clarified that while there were dozens of people on the game's music staff, there were only four main composers actually writing and arranging the music, making them the smallest group within the project (this also included people working on sound effects and voice acting). The main theme of the game was written by composer Mitsuyoshi Takenobu. Koshiro believed Takenobu had "the hardest time of us all" during development as he also helped fine-tune the game's music in line with the programmers and director's requests. Koshiro also mentioned that at the beginning of the project, the offer made to get him on the project was that Takenobu would write songs, and Koshiro would orchestrate and arrange them. However, as the project went on, they both went on the opposite direction.