Shroudreach Station: The harp arpeggios and glockenspiel starlight twinkling sets up a weightless and outer space feel that immediately puts me in the setting consistent with the theme images. I recognize that Musescore is primarily a compositional tool and is not intended for mixing, though I do wonder if some dynamic contrast with crescendos in the French horns would allow them to blend in and grow out of the delicate instrumentation from before they emerge. I really like the melody they introduce!
The Greenhouse: The plucky arpeggios and flute melody give me floral imagery that help place the new setting from the get-go. My favorite part is the counterpoint in the flutes in the ascending line from mm 38-43 toward the end!
The Archives: I like the return of the motif in this track. The rapid oscillating piano arpeggios create a sense of scholarly mystique that I really love. The reediness of the saxophone is an unexpected choice, but I think the flute is able to bridge the gap between the piano and saxophone.
Dark Side: I don’t know if there is an official name for it, but I call it the “Hotel California” progression - I really like its use here! The downward stepwise motion in the bass conveys the darker and melancholic tone of this track well.
Release, Sol: Musescore vocal samples sound quite artificial, but I absolutely can hear the full epic choral sound you are intending here! I imagine the gameplay being supported by this track is a grand climactic scene full of emotion and answers that are finally answered to the questions you’ve been searching for throughout the game up to this point.
Observatory: This track also has a climactic feel to it as it builds up with so many instruments. It does sound nice and conclusive making it a nice ending track for the whole OST. I liked the drawn out cadence at the end and especially the b7 - 7 - 1 at the very end.
Overall this is quite an impressive variety of music all working synergistically to tell your story. The composition throughout is quite impressive. I was listening for the Dies Irae motif, but I seem to have missed it - can you direct me to which track it is in? Well done and thank you for sharing!