Z12e201v2e091n4t

z12e201v2e091n4t (called on the JASRAC database) is Disc 2, Track 11 on the XenobladeX Original Soundtrack. It is split into three parts: the first plays from the start until 2:00, the second plays from 2:00 until 4:37, and the third plays from 4:37 until the end.

The first part plays in Ganglion bases, as well as in the following cutscenes:
 * The party notices signs of a battle across Oblivia in.
 * Doug requests that the party take care of his last data point during Close Comrades.
 * Elma briefs the party on their duty for the Ganglion invasion in.
 * Gwin tells Mathias where Aisha was last seen during Nine Lives.
 * calls Elma and her team over to the Hangar in.
 * The party reaches the point of no return in.

The second plays in certain (often hidden) areas around Mira, as well as in the following cutscenes:
 * Elma consults with Lao regarding information about the Lifehold signal before the party heads off to Noctilum in.
 * L is introduced to in Chapter 4.
 * Elma offers to escort Lao's teammates during A Friend In Need.
 * The party first brush with the Tainted Caro in.
 * Lin performs the analysis of the last data point during Close Comrades.
 * Elma realises that the party had fallen for a diversion in.
 * Nagi talks with the party before they head off on their mission during Spy Games.

The third plays in the following cutscenes:
 * The Vita is airlifted out of Noctilum in Chapter 6.
 * Ryyz takes control of the Zu Pharg in.
 * Mathias grabs Aisha from in front of the Greedy Forfex during Nine Lives.
 * Luxaar appears with the Vita inside the Lifehold Core in Chapter 12.

Both the first and the second part are one of few area themes that take priority over Don't worry.

Etymology
The track title can be split into 3 parts: the prefix 'z12', the digits '20120914', and the letters 'event'. The digits can be interpreted as the date 2012/09/14, or the 14th of September 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.