And the (Gersh)winner is...
More sampling. This time from a George Gershwin LP I had transferred the week before. While it played I made a mental note of the end of side A having some choice material, and headed straight there.
The audio here is from one of two sessions. I found a cool loop and made a short sequence from it. The recording is that sequence being run twice through the first few filters onboard the S5000. (I did record every filter, but this clip is just the first few.)
May soon I'll start arranging some of this material...