This playback rig was integrated with the full band and vocals via midi program changes that I programmed, which in turn basically made me full backline tech as well. These program changes were put into effect to automate all the guitar tone changes, bass tone changes, drum trigger changes, the keyboard character changes, and all of the vocal effect changes. I would send program changes to the corresponding instruments or to MainStage (vocals and midi keyboards) so that none of the players ever had to touch a pedal or change a single tone patch.