J M Needham:
Dear All,
I need to have something that will do a pitchshift which I want to be able
to set up the curve on and ideally use as a plugin/fx box/in some way.
Anyone got any suggestions? Googling has been hard :-(
You mean like in this screenshot of snd-ls from the snd manual?
http://ccrma.stanford.edu/software/snd/snd/grfsnd.html#sndresources