The Inn is quiet again but for the rat-a-tat-tatting of rhythmic rain on the roof, Mother Nature’s own percussive washboard. It was a musical weekend with New Bedford band Pumpkin Head Ted visiting the North Country. Morning coffee on the terrace was accompanied by strumming of an acoustic guitar. A noontime flute trilled along the upstairs hallway. Hours before customers arrived, an impromptu session filled the pub with gentle harmonies. But I’d been thinking more discordant thoughts.