Shion ~Emotion~

 (Kokoro Piano Version on the Kokoro / Joanne Hogg Theme from "Xenosaga Episode I" album) is Disc 2, Track 21 on the Xenosaga Original Soundtrack, Disc 1, Track 19 on the album, and Track 3 on the Kokoro / Joanne Hogg Theme from "Xenosaga Episode I" album. ('Shion ~Emotion~' is an unofficial translation, as seen in the VGMdb listing of the album.) It, alongside and Shion ~Memories of the Past~, is one of the tracks based on the melody at the start of.

It plays in the following cutscenes:
 * Shion meets Jr. aboard the Durandal.
 * Shion considers Febronia and Nephilim's words to her as she drifts off to sleep after the events of KOS-MOS' subconscious domain.