Electronic music’s history is full of profane treatments of objects. Artists have been known to cut and disintegrate tape, make Dada-like readymades and put contact mics on any and all possible items.
This guy’s intentions may not share in that exact same spirit of avant-gardism. After all, he is playing the Super Mario Bros. theme song. But hey, if circuit-bending the Casio SK-5 keyboard you received as a present on your 14th birthday and sending it MIDI data from an Arduino is how you get into the bizarro side of electronic music, then who are we to complain?