The world’s longest guitar? YouTuber builds a beastly three-neck acoustic – and somehow makes it playable

Bernth behind a three-neck-long acoustic guitar
(Image credit: Bernth/YouTube)

It was only last month that we were once again reporting on the wild experiments of mad six-string scientist Bernth, who managed to record a song with a, erm, neckless electric guitar.

That video was the latest in a long line of instrumental investigations from Bernth, which have seen the YouTuber use dental floss and rubber bands as guitar strings, drill holes into his acoustic, set off sparklers inside his guitar while playing it and more. 

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Matt Owen
Senior Staff Writer,

Matt is a Senior Staff Writer, writing for Guitar World, Guitarist and Total Guitar. He has a Masters in the guitar, a degree in history, and has spent the last 16 years playing everything from blues and jazz to indie and pop. When he’s not combining his passion for writing and music during his day job, Matt records for a number of UK-based bands and songwriters as a session musician.