The music of the video game "Final Fantasy IV" was composed by regular series composer Nobuo Uematsu. The "Final Fantasy IV Original Sound Version", a compilation of almost all of the music in the game, was released by Square Co./NTT Publishing, and subsequently re-released by NTT Publishing. It was released in North America by Tokyopop as "Final Fantasy IV Official Soundtrack: Music from Final Fantasy Chronicles", with one additional track. It has since been re-released multiple times with slight changes as part of the "Final Fantasy Finest Box" and as "Final Fantasy IV DS OST". An arranged album entitled "Final Fantasy IV Celtic Moon", containing a selection of musical tracks from the game performed in the style of Celtic music by Máire Breatnach, was released by Square and later re-released by NTT Publishing. Additionally, a collection of piano arrangements composed by Nobuo Uematsu and played by Toshiyuki Mori titled "Piano Collections Final Fantasy IV" was released by NTT Publishing.