In reading the manual, they sound very powerful. In searching the forum, people reference them, etc. but I’m not finding any/many examples of how in the heck each “variety” works, use cases, etc. Probability is pretty obvious, but the manual is pretty sketchy on what they all do.
Like this… Makes no sense to me…
PRE is true if the most recently evaluated note condition on the same track was true.
PRE is true when PRE is not.
NEI is true if the most recently evaluated note condition on the neighbour track (the track
above the one being edited) was true.
NEI is true when NEI is not.
This reads like an out-take of Jabberwocky that even Lewis thought was too weird to be understood.