the idea of plocks working as an offset is quite cool. i would say though that it would be a little more useful for me to have plocks remain intact, despite scenes. for instance, if youve plocked a melody using pitch, you could change the scene to alter all the un-plocked notes. similarly interesting results could be had using start and rate parameters. as it is, scene locking flattens all the plocks and makes rather dynamic sequences a bit less interesting.