Chris Riebschlager and the Dimensional Innovations team came up with an over-sized build for the two-day Boulevardia music festival in Kansas City. They built an electric guitar for the event which weighs in at 500 pounds and is 12 feet in length. It is made out of MDF and steel and the strings are comprised of 16-gauge wire. They used a Bare Conductive Touch Board to sense the plucking of the strings. The Touch Board then sends messages to a Raspberry Pi which decides which sound sample to play. They added arcade buttons on the side of the guitar to allow the playing of chords (the ability to play chords on the strings somewhat difficult due to the size of the thing!) You can see the guitar in action in the video below and read more and see more of the build over on medium.com.