No10=CR17S19S8

no10=CR17S19S8 (called on the JASRAC database) is Disc 1, Track 10 on the XenobladeX Original Soundtrack (making it the tenth track in 0rCH-SUITE "X"). It is split into 3 parts; the first plays from the start until 2:26, the second plays from 2:26 until 4:34, and the third plays from 4:34 until the end.

The first part of the track plays in the following cutscenes:
 * The party encounters Glennar in.
 * Prone Skells surround the Ma-non in.
 * The Fierce Vigent appears during A Friend In Need.
 * Ganglion forces flee from the Tainted at the start of.
 * Elma and Irina plan their assault to save the Lifehold piece during.
 * The party sees Celica and Rock being confronted by the Ganglion during Manhunt.
 * Luxaar attempts to destroy the Lifehold Core's main control system after the Vita is defeated in.

The second part plays in the following cutscenes:
 * Irina recognises the two BLADEs that need saving during Renewed Will.
 * The BLADEs fly towards the Lifehold Core in.

The third part plays during the battle against Goetia in. It also plays in fights against the following enemies:
 * Dadaan, the Strongest Prone
 * Lugalbanda, the Wanderer-King
 * Vortice, the Deific Blast
 * Nahum, the Red Hare and Nardacyon, the Shadowless
 * Pharsis, the Everqueen

Etymology
The no10= at the start of the track indicates that this is the 10th track on 0rCH-SUITE "X". Moreover: Putting these together with the 'CR' and 'S' in the title results in 'CR i shi S', or 'Crisis'. The significance of '19S8' is unknown.
 * The first syllable of the number one in Japanese is 'i' (from 'ichi').
 * The first syllable of the number seven in Japanese is 'shi' (from 'shichi').