Key Automator V3 is a suite of 7 modules for the purpose of controlling your entire project from a Key track and a Chord Track. There are text tutorials for each of the modules in the project.
V3 fixes bugs, refines the guts of the modules and makes everything more flexible.
Tip: go to the Chord Track and play some notes while the project plays.
Updated to 3.1 last night to properly label the inputs and outputs and auto-connect when applicable.
3.2 has more thorough text tutorials.

This is exceptionally great.
Can i add eg Scaler auv somehow easily?