At thirteen, he took the tone arm from his father's phonograph, jammed theheavy needle into the top of his five-dollar guitar, and filled it with Plasterof Paris to quell feedback. The guitar didn't survive, but his idea worked, essentially creating the first solid-body electric guitar. Les Paul went on toalter guitars in his quest to create the perfect sound, making one breakthroughafter another along the way. Nonstop experiments in his homemade...