Last Friday’s letter, “Little Rooms,” begins:

“Great things start in little rooms.” That’s André 3000 of Outkast in his Rock and Roll Hall of Fame acceptance speech, referencing Jack White of The White Stripes, who told young artists in his acceptance speech to “get your hands dirty and drop the screens and get out in your garage or your little room and get obsessed.” In my opinion, White’s “Little Room” is the greatest song ever written about success. He...