Caption for the picture in the gallery.

Starting from the top left and going clockwise spiraling into the center, the blue object is a 5V, 2A USB power bank. To the right is a battery powered speaker. The dsp-G1 produces monophonic output so a single speaker is fine. 

Next is a MIDI control board with 8 knobs, 8 faders, and lots of buttons. Next is a MIDI keyboard with a volume fader (CC-07) and modulation wheel (CC-01). The dsp-G1 ignores pitch bend so the pitch bend wheel is not useful. Next is a breadboard with two Trinket M0s working as USB MIDI to UART MIDI converters. The MIDI UART signals are are routed with blue wires to the MIDI input of the dsp-G1. Yellow wires carry 5V power and red wires carry 3.3V power.