I tried turning a 4 second loop into a 2 minute loop, and tried to keep it faithful to the 4 second loop while still making it interesting to listen to. I didn't do as good a job at it as I wish I had, but I did learn a bit more about how to use automation tracks well. Any feedback is appreciated.
The loop in question: https://www.newgrounds.com/audio/listen/1
Made for the Jan 2019 NAC