There’s a pair of jokes David Thomas likes to tell when he talks about the theory of fun. “A horse walks into a bar,” the first joke goes, “and the bartender says, ‘Why the long face?’ “ “A duck walks ...

“It’s the most fun class I teach.” When the Crabtrees retired and closed Reifsnyder’s in June, the class lost its home. She called Menchey Music, 1555 Manheim Pike, another local music company with ...