I think that a progression in a track doesn’t necessarily have to come from changes in melody or chords. Synthesizers really enable you to create a different energy or feel using only changes to timbre of the actual sounds. Just the simple subtle tweaking of a filter can make all the difference.
This post is pre dated. One of the purposes of this website is to put all my musical productions into one place. In order to get my archive more or less accurate, I chose to date stuff that was produced before the launch of this website at or around the time they were originally published.