Rob Scallon has been taking extreme metal to, well... new extremes! In previous videos, he's made songs using every fret of every string and in another just one fret! He's even recorded Metallica's "Enter Sandman" backwards and has now done something just as crazy. Pinch harmonics are used to accentuate notes and add a flair to certain riffs, but Scallon took it to the next level crafting a song only using pinch harmonics.

For those who do not know what a pinch harmonic is, it is a guitar technique used to create a false harmonic where a finger on the picking hand scrapes the string after it is struck by the guitar pick and the result is a squelching noise. The inspiration for the video came from a tweet sent to Scallon, saying, "I challenge you to play a song using just pinch harmonics." The YouTube sensation accepted the challenge and unleashed the video seen above.

The song itself is surprisingly catchy, which can also be attributed to Scallon's unique sense of creativity and aptitude for excelling in the most oddball of guitar fields. Some parts even sound like old Nintendo video games, which would not be out of place considering names like Lemmy Koopa (a tribute to Lemmy Kilmister) and Wendy O. Koopa (a nod to Wendy O. Williams) appear in the Super Marios Bros. series.

Of course, the most famous name in the legacy of pinch harmonics would uncontestedly be Zakk Wylde. Between his work in Ozzy Osbourne and Black Label Society, Wylde's signature move is played like nobody else can in the business and he's even given video lessons on how he made such a widely used technique his own.

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