Is the soundtrack available and I missed it? Can't find a link...
There's a link in the PDF, but as of this comment it's a dead end - updates on the Kickstarter say the soundtrack is coming later this year, and to try using the Artefact soundtrack for now. Gave that a shot, and it worked pretty well (although the track names don't go 1:1 with the Bucket time periods, so check the actual lengths of the tracks).