Bride Of Synthog Keyboard assembly

I made keys out of mat board, and painted them.  Bare wire is attached to the bottom of each key with heavy duty rubber-based cement.  Wire is routed around the keyboard base so that white and black keys can make contact.  Key wires will come out the back of the keyboard and be soldered to 13 10k resistors and then to solder points along the back.  The keyboard's output is a single wire.  The box onto which the keys are taped for cementing is the enclosure I'm going to use.  It's a brand new breaker box, found at Habitat For Humanity ReStore for $10.
Also pictured are two lo-z cardiod mics I got for $10 at a garage sale.