In Take a Sad Song: The Emotional Currency of "Hey Jude," James Campion dives deeply into the song's origins, recording, visual presentation, impact, and eventual influence, while also discovering what makes "Hey Jude" a classic musical expression of personal comfort and societal unity conceived by a master songwriter, Paul McCartney. Within its melodic brilliance and lyrical touchstones of empathy and nostalgia resides McCartney's personal...