This documentary recently was released to DVD and cable TV. The documentary tells the story of the legendary Disney composers Robert and Richard Sherman who have written more motion-picture musical song scores than any other songwriting team in the history of cinema.
They wrote music for Mary Poppins, Sword in the Stone, The Jungle Book as well as non Disney films such as Chitty Chitty Bang Bang and Snoopy Come Home.
The documentary focuses on the fact that the two brothers worked very closely together but were not close at all.
This episode was not the fist time The Sherman Brothers were mentioned on the Ken P. D. Snydecast.
On KEN P.D. SNYDECAST #134: The Short One That Isn’t So Much Ken recommends listening to the "story meetings" between The Sherman Brothers and Mary Poppins writer P. L. Travers.
Ken describes the recordings as being "very fun" and describes P. L. Travers as "just crotchety and picky and just a horribly stuffy woman."
The story meetings are on youtube (audio only) and are a really interesting listen. Here is part 1:
You can find the other 4 parts (and the rest of that soundtrack) here.