“1971 would turn out to be the busiest, most creative, most innovative, most interesting, and longest-resounding year of the rock era.” So begins David Hepworth’s whirlwind, month-by-month breakdown of the astonishing output and ascendancy of rock ‘n’ roll and its practitioners. In that auspicious year The Who released Who’s Next; Joni Mitchell made Blue; Zep toured the clubs in-between stadiums; Carole King put out Tapestry; Lennon killed the Beatles with Plastic Ono Band, while George Harrison put on the Concert for Bangladesh, to name just a few events. What makes this more than a collection of “golly-gee” anecdotes is Hepworth’s ability to place it all in a greater context of where the culture came from and where it was going.