You can do it all in ReaTrak easily there's a new ver47 just released.
You can drop midi strum patterns into a Reaper track then it will fit them to the usertrack chords that you can get from the Biab Plugin "Biab Plugin Chords" even if you open the SGU in the Biab Standalone Plugin it will get the chords.
Midi Strum Pattern Generator
If you have a virtual instrument that follows a chord track like MusicLabs RealGuitars you can create any patterns you like and send the midi output of RealGuitar to any virtual instrument you like, like the PG Sforzando library of instruments or your own sfz like the free sfz in the user section of the forum.
EDIT: there's also MIDI Guitar Chord Tool

Last edited by Pipeline; 11/25/19 05:39 PM.