Before Freakonomics, before he set out as a journalist, Stephen Dubner abandoned a promising career as a musician because, “I didn’t want to be doing something that I felt required adoration to give me validation.” But surely every writer wants readers who value his work, so what’s the difference? An artist’s relationship with his audience: the salubrious and the corrupt. Plus banjo work from Hubby Jenkins, who did stick with music – brilliantly! – at JCC Manhattan.