Sinensis is 6 bandpass filters.
You interact with the relation between their gains and frequency. You can input MIDI to play the bands with notes. To route MIDI to Sinensis, you can find info on this website
tl;dr : Set the output of a MIDI track to the track where the plug-in lives.

Downloads
Windows - MacOS
You might need a Manual.
And maybe the Source Code ?
Learn more about How and Why.