albedozero

It would be a little different since from what I understand the rock band guitar doesn't have a MIDI output for you to steal MIDI signals from. Probably the easiest, cheapest way would be to wire the buttons on the guitar neck to the inputs of a microcontroller such as a Teensy LC or Arduino Pro Mini, which you would then program to send the appropriate MIDI signals to the XBee via its serial port. The receiver could be constructed in exactly the same way.

Awesome! I wanted to do exactly that, and with your comment I now realize it would just involve moving some wires around. Go internet!

Totally just bought a USB host chip off HT for version 2 of this build - seems there's always a better +/- cheaper way

Fair point - I will respond with an image:

But seriously - my 'ible is far from the first of this kind. Someone should whip up a cheaper build - if we all work together we can someday beat Amazon.