Final Fantasy XI Original Soundtrack Premium Box Catalog # Composers Arrangers Producers Publisher CD Info Length Release date Final Fantasy XI Original Soundtrack Premium Box is the boxed collection of the soundtracks for Final Fantasy XI and its expansions up to Treasures of Aht Urhgan. It also includes two previously unreleased albums, Final Fantasy XI Unreleased Tracks and Final Fantasy XI Piano Collections. These are currently unavailable outside of the collection, and the Final Fantasy XI Piano Collections included in this boxset is different than the newer standalone release. The box set includes a sheet music book for the Piano Collections arrangements.