Rubedo's promise

 is a track in Xenosaga Episode II. It has not been released on any soundtrack or sound selection and not much is known about this track. It plays in the following cutscenes:
 * Jr. tells Juli about the promise he made to Sakura, that he would protect Juli and MOMO.
 * Jr. talks with Shion about going to see and stop Albedo after the events of the Ω System (Japanese audio only — in the English version of the game, no music plays in this cutscene).