The Beatles, Sean says, were an essential springboard for John, however irksome his life with them became. “I don’t think my dad would have been commercial at all without Paul and the management and George Martin. I mean in the sense of making himself palatable to the masses, I don’t think that was his area of expertise. I think he was very edgy and interesting, and ‘edgy’ and ‘interesting’ don’t always cut it for the populace. I think the sugar around the Beatles with my dad as this core of intensity made them the ultimate package.
