Hi dude...well i lay my whole set out in orion as a song...usually 1-1.5 hours long...this includes all drums, samples and synth parts...this basically leaves me free to tweak the 303's,synths(and their patterns) and effects live...and makes sure that the set is continuous and structured how i want it to be...thats way i get to enjoy myself more than i would if i had to manually trigger the patterns live..which i have done...on occasion.(with many a headache!):)
...i keep meaning to try ableton live...but have grown too attached to orion :)