Z30huri2ba0tt12le1110

z30huri2ba0tt12le1110 (called on the JASRAC database) is Disc 2, Track 10 on the XenobladeX Original Soundtrack. It plays as the battle music in the following battles:
 * Interfearance during Serial Thriller.
 * The Rexoskell on the Emerian Battlegrounds during Definian Downfall.
 * The Xern during the Squad Mission The Soulless Paratroops.
 * The Colubrim during the Squad Mission Legendary Drake.
 * Da Dorde, Gi Bordo, Gu Galda, and Zo Zongra during the Squad Mission The Wrothian Four.
 * Wrothian A and Wrothian B during the Squad Mission Renegade Troopers.
 * The Sabula during the Squad Mission The Old Adage.
 * The Colubrim and Scintimures during Unnatural Disaster.

Etymology
The track title can be split into 3 parts: the prefix 'z30', the digits '20121110', and the letters 'huribattle'. Given that 'fu' and 'hu' are written using the same kana (script letter) in Japanese, and are pronounced the same, it is possible that the letters actually signify 'furibattle' (or 'free battle'). Alternatively, 'huri' can be taken as a romanisation of the Japanese word 不利, which means 'disadvantage', so the title may signify 'disadvantaged battle' instead.

The digits can be interpreted as the date 2012/11/10, or the 10th of November 2012, possibly the date in which the track was composed or recorded. The track is one of several in the XenobladeX Original Soundtrack beginning with 'z' and a number (possibly followed by 'b'); the significance of this is unknown.