Early on, I figured out that when the top of a guitar is vibrating and a string is vibrating, you’ve got a conflict. One of them has got to stop, and it can’t be the string, because that’s making the sound. So in 1934, I asked the Larson BrothersChicago instrument makersto build me a guitar with a half-inch-thick maple top and no f-holes. They thought I was crazy.