“Shoo Fly, Don’t Bother Me,” “Blue Tail Fly (Jimmy Crack Corn),” “Polly Wolly Doodle,” “Turkey in the Straw.” What do these songs have in common? They’re American folk songs ...

"Shoo Fly, Don’t Bother Me,” “Blue Tail Fly (Jimmy Crack Corn),” “Polly Wolly Doodle,” “Turkey in the Straw.” What do these songs have in common? They’re American folk songs ...