XenobladeX Original Soundtrack

The XenobladeX Original Soundtrack is the official soundtrack to Xenoblade Chronicles X and the most complete release of the music of this game. It was entirely composed by Hiroyuki Sawano and released on the 20th of May, 2015 on 4 CDs only in Japan.

As is common for Sawano's music, the tracks feature rather unique names and many consist of multiple pieces of music put together in one track (noted as 'double tracks' or 'triple tracks' below). The JASRAC entry for this soundtrack includes a different set of titles, the original titles 'decoded' into more-easily-readable English or Japanese.

The soundtrack comes with a booklet that includes a track listing and lyrics for several tracks. The track listing separates out the first 11 tracks of Disc 1 with the header 0rCH-SUITE "X", likely indicating that they are meant to form a suite of 11 tracks, although this suite has not been released independently.

The 3rd disc mostly contains area background music, and the 4th disc mostly contains alternate versions of other tracks. Aside from this and 0rCH-SUITE "X", however, there is little correlation with the soundtrack's organisation and the functionality/order of the music in-game.