Did you know the ETC can be controlled with MIDI CC? You don't even need to send audio to bring the Modes to life! Adjust the knob settings, toggle the Auto Clear function, or send program changes. Use the 5-pin MIDI input on the rear or USB port on the right side of the device for USB MIDI controllers (or class-compliant USB MIDI interfaces).
Don't be alarmed by silence! Some clips in this video were made without sound input.
For more information, see the Midi Configuration section of the ETC manual: