GTG K1.3 freevst December 7, 2020 Leave a Comment on GTG K1.3 Posted in Synthesizer Share: XFacebookPinterestLinkedin GTG K1.3 A remake of the K1. Some minor enhancements. Better filter controls. Added a damp function on the delay. Improved layout. Standard midi implementation. Support: GTG K1 Win32 Author: freevst