The Beatles' songs often have such creativity, depth and nuance. Lyrics open to multiple interpretations, married to music that simultaneously captures and conveys the 'feel' of those lyrics.

Here, together with sociologist Candy Leonard, author of the book 'Beatleness: How the Beatles and Their Fans Remade the World', we discuss the songwriters' journey: from the days of sexual innuendo in their lyrics to those, just a few years later, of overt references - while transitioning from misogyny to feminism with love thrown into the mix.