Perhaps the most iconic instrument in modern rock is the guitar. It's really just a bunch of strings stretched across a board, which you can strum to make awesome tunes, thanks to the physics of waves ...

For decades, Max Cavalera (Soulfly, Cavalera Conspiracy, ex-Sepultura, Nailbomb, Killer Be Killed, Go Ahead and Die) has been known to equip his guitars with only four strings, but why? The obvious ...

When Sam Edelston strolls onstage with a delicate three-string mountain dulcimer, audiences expect him to deliver quaint folk music. “Then I plug in, blast out ‘Smoke on the Water,’ and they go ‘Whoa, ...