Originally released as part of a compilation here: https://indexofrefractionrecords.bandcamp.com/album/mycelium-compilation
The theme of the compilation was to make glimmer music with very short length, imagine this track being the intro theme to some Twin Peaks-esque mystery show.
The instruments used on this was a Toy Celesta VST (thank you to Lullatone: https://lullatonesamplesets.bandcamp.com/album/toy-celesta-sample-set) and a Theremin patch played on a Roli Seaboard.