I've been having fun with some of the more exotic combinations of sound generators in Furnace Tracker. Turns out that you have to define an instrument for samples in order to use them. I'm used to trackers that are sample-based just letting you go by sample index, but that's not the case here, and I took a while to figure this out because it's not in the documentation
I'm in the middle of progress so nothing to show for it yet, but hopefully soon