His first assignment for Square was to score Parasite Eve II, for which he was the sole composer and spent a year and a half working on.
Mizuta remained with the Final Fantasy XI project for over ten years, serving as the sole composer for the game's five expansions, and considers it his life's work.
[3][4] Other members of the band, which plays arrangements of songs from Final Fantasy XI, include Tanioka, Hidenori Iwasaki, and Tsuyoshi Sekito.
For games, Mizuta is primarily focused on creating music that fits the title and the scene at hand, without consideration for how it might sound in isolation.
On the other hand, for alternative presentations of his music such as live performances or piano arrangements, Mizuta feels more free to have fun and play it however he likes.