We talk about the Beatles longtime producer George Martin. He's one of the most common nominees for the informal title of "Fifth Beatle" for his contributions to their sound.

Whether it was through knowing when to take the role of teacher vs. letting them make the decisions, or being able to turn John Lennon's abstract wishes into concrete instrumentation, or even in the early days broadly helping to direct their songwriting -- George Martin was crucial in helping the Beatles become THE BEATLES.

Along the way we have some fun distractions including checking out isolated tracks from Sgt. Pepper and also Peter Serafinowicz' track "A Full Day In The Life." And somehow Heather keeps imitating Eddie Vedder.

Panelists: Suzi Barrett, Will Hines, Connor Ratliff, Joel Spence, Heather Woodward.