I play a lot of experimental music, from 'avant-rock' like Godspeed You Black Emperor type stuff to very abstract, very sparse and quiet. I play in several bands with all sorts of instrumentalists including tabla, sitar, merdungam, djembe, drum kit, guitar, bass, tone drums, home-made instruments etc. We get real quiet, we get real loud.
My setup is certainly not a common one for the Axe-FX. I plug a small mackie mixer into my Ultra. Into that mixer go my guitar, my viola, and an old Sennheiser 441 dynamic mike through which I sing tones, play singing bowls, penny whistles, nose flute, and other things like my 'zefalator', which is a slide whistle made from a bike pump and an alto recording mouthpiece. I rarely use more than one instrument at once, but occasionally I'll play viola and sing at the same time through the same FX. I may eventually have the Ultra and my new II in one rack so I can have to separate units ith two separate paths. I can't do that with my Ultra becuase I also use the FX Loop to go out to my mono-in-stereo-out PCM-70. Truthfully, I use ONE effect in the PCM-70 95% of the time, but until someone can create a patch in the AXE that mimics it, that old classic will stay in my rack.
My patches in the ultra that are most used are: a clean, 'fender' sound, with the FX loop in it so I can always call up my 'Psycho Echoes' patch on the PCM-70. A lot of patches based on that that have different delay characteristics - some are slappy, one is around 1650 ms with a lot of feedback, and the longest is almost a 5 second loop, also with high feedback. I definitely use a lot of delay. I also have some big, overdriven amp patches, some old Mesa, some old marshall - but not the super-gainey hype-o-matic sounds, much more organic to me, like an old amp just about to melt down. Also some flange (still not entirely happy with the Ultra's flange), chorus etc. I also use the looper, but I hate it. I may go back to a boss looper - they are just so superior in features and usability to the Ultra's looper. The looper is, to my mind, the one real disappointment in my Ultra. haven't messed with it on the II yet (still trying to reproduce my basic patches), but it sounds like it's pretty much the same thing. A pity.
The patches range a lot, because the music I do encompasses both Rock instruments, and all of these delicate things (Equadorean Nose Flute, Revere Ware pot lids, etc.
BTW, the 'patch I can't live without' in the PCM-70, 'Psycho Echoes' is like a flanged 8-tap multi-delay. I once put some samples of it up on this board in 2008, but no one was able to recreate it. If anyone wants a crack at it, I would pay SEVERAL HUNDRED DOLLARS for a convincing clone.
Cheers