Thanks very much for sorting it. The patch works really well with some microtonal tunings. My intention was to record some miniatures to demonstrate its usefulness but Audacity is giving me a hard time at the moment (something to do with my VSTHost set up).
Replacing "random 9 /+2" with "random 9/-11" produces a different harmony. as the randomly generated notes are now an octave lower. So for example, C3, E3 would become E2, C3.