This project entails the use of an Arduino, some circuitry, pressure and proximity sensors and the Maxuino front-end utilizing OSCroute.  I track the sensors’ voltage outputs and interpret them through the Arduino into the Maxuino front-end.  The nature of these sensors and their placement allow the user full interaction with effects that I program in MaxMSP.  Max for Live allows for use of these effects in a performance setting.

How was MAX used?

I use many MSP objects like pitch~, stutter~ and freqshift~ exclusively within the patches that I have written for the guitar effects. Max for Live allows me to use these effects in a performance setting. Maxuino allows for communication from the onboard sensors into the Max environment.

Article source: http://cycling74.com/project/alter-your-playing-ayp-guitar/