Phil Elverum was feeling blocked. Not in any dire way — just in the way artists sometimes get when things are particularly busy. There was Covid to contend with, as well as the house he’d been ...

Mark Naison, 73, had just days to move online his decades-old class, a history of music from rock ’n’ roll to hip-hop. He wasn't sure how to preserve the raucous spirit of the course, but he had an ...