Here is the code! Go get it, Luigi! Orignal work by John Harrison that the following code was based on: http://cratel.wichita.edu/blogs/engr101fall2010/2010/11/29/2-voices-simultaneously-on-1-arduino/ // 2 voices on 1 Arduino // demo by John Harrison // Nov 28, 2011 // public domain // Modified by Dipto Pratyaksa // Added Mario tunes by Dipto…