Way to change patches with a midi signal?

Just send a MIDI program change from any MIDI device capable of sending this (which is virtually all MIDI devices). Make sure that the program change number corresponds to the patch number in MainStage (although some devices start their numbering from #000 and others start from #001 so bear this in mind)

This isn't a criticism but from your question it sounds like you don't have much MIDI experience.....just ask if you need a more in-depth explanation as to how to send MIDI program changes, but make sure you include info on which devices you have.

Hi

There are basically 2 ways to achieve what you want:

1) Assign buttons on your keyboard controller to transmit MIDI Program Change messages (consult the controller manual). Mainstage can incrementally assign Patches to incoming PC messages (in the Patch List use the 'Action' gear wheel menu and choose "Reset Program Change Numbers"), or you can assign the messages manually (in the Patch Inspector Attributes Tab).

This method will allow you to select any patch quickly.

2) You could use two controller switches on your keyboard (transmitting MIDI Controller messages or possibly other types of message), and MIDI Learn them in Layout mode to two Mainstage buttons. At Concert level in Edit Mode, assign these buttons to "Next/Previous Patch".

With this method, you will have to step through the Patches in the list to get to the sounds that you want.


HTH

CCT