A couple of the bands I was in back in the day covered a couple of Gov’t Mule songs, if for no one else’s enjoyment but ours (they never really went over in rural NC clubs that wanted to hear “Sweet Home Alabama” or “Mustang Sally” or “Brown-Eyed Girl” over and over). “Rockin’ Horse” was a favorite; so many twists and dynamics, and I never tired of singing it, even if its ending was followed by the view of an empty dancefloor and the sound of crickets from the room, save for the distant clink or...