I'm looking for an editor that allows me to generate multi-channel (or multi-parameter I guess) Qlist data algorithmically and then edit the curves graphically/ cut and paste. Anybody know of a decent bit of software that'll do this?
Alternately, if not Qlist data, then something that can send OSC commands

I keep thinking that these sort of things must exist but I've not had much luck finding any.

I am not really sure about Qlist part, since I've never used such a thing. But, there is an excellent software called "Iannix", which allows you to create scores for Pd to read through OSC commands. That might be something you looking for.

http://iannix.la-kitchen.fr/

Thanks - I'm a huge Xenakis geek so I tried Iannix out a while back, but to be honest back when I looked at it I found that it was incredibly unstable, a big resource hog and quite difficult to do anything precise and composed with. It's a fantastic idea, and probably nice for gestural stuff, great for performance no doubt - setting all these cycles in motion and syncing etc. but just not right as a workhorse.

Though maybe I should take another look. Do you know if there are any good examples of it in use that I could take a look at?

I don't really have anything to suggest you to look besides a couple of youtube links:

I made a couple of performances about a year ago and found it pretty convenient, stable. It would still be my first choice if I ever build any kind of score reading patch.

As far as I remember there were a couple of posts here as well...