I just feel like putting the translations for the track names of the OSTs. Source is Wiktionary (how credible hahaha) and latin-dictionary.org.
- Terrarum - ground, land; played during Rei’s journey in the arid lands
- Oppidum - non-Roman town, referring to the humble town of the Phiroids
- Vitae - lives, this is a pretty cheery track
- Cantus - sung, chanted; Shiona’s theme?
- Library - actually the only English-titled BGM in the list, Tipi’s theme?
- Tristitia - sadness; the track played during a funeral scene so yeah
- Pecado - is actually Portuguese/Spanish; sin; feels track
- Rruinis - perhaps Ruinis; collapsed; also another feels track
- Reditum - return; was this the track that played during the arrival of humans? This is a pretty ominous track.
- Harmonia - harmony, music, peace; this is a pretty uplifting track
- Caveam - cage; this is pretty ironic considering this is an orgel arrangement of the more adventurous of Terrarum
- Risu - laugh; orgel arrangement of Cantus
- Scindet - will cut, will divide, will destroy, will disturb; arrange of Library, perhaps referring to Tipi’s separation from her loved ones, or her being disturbed from her normal life
- Spero - hoping, trusting; orgel arrangement of Todoketai Melody
- Halitus - exhaled breath; melody of Shiona’s orgel and the accompaniment of her song Towa no Hoshi e