cover songs The Heaviest Banjo in the Universe: A hillbilly heavy metal cover of Gojira Rusty Blazenhoff

music The fragile glass armonica Rob Beschizza

music Check out the Guinness Record-holder for the world's largest guitar pedal board Thom Dunn

music The evolution of the guitar over the centuries Andrea James

here we are now entertain us What a guitar sounds like played through 319 pedals Clive Thompson

music Recording metal on an Edison wax cylinder phonograph Andrea James

music Metallica's "For Whom The Bell Tolls" played on bells David Pescovitz

Video: Playing Metallica's "Enter Sandman" backwards David Pescovitz