So I eventually did my second duet with @Anatol . I selected it randomly, having decided I liked it when listening through but not thinking I could add to it meaningfully without making it worse (and therefore not selecting it). I had a number of thoughts regarding what I might add but in the end I decided to go simple. Having listened through a couple of times I did a one take improvisation on piano. Listening to my part alone I decided it could do with a little something extra, so I added a repetetive bleep pattern in the background which I brought in and out a few times.
Hardware wise, the bleeps were from my modular playing a Euclidean rhythm synced to my MPC which was playing the original piece and the piano. In this case the piano was my MPC port of the free salamander piano. Beyond that there isn’t much to report other than my typical EQ effects and mastering.
You can download a version with the two parts hard panned here. Thanks for another great project everyone.