I stumbled upon an interesting podcast discussing the music of Scott Walker. Wouldn’t you know they did another episode on Brian and the BBs. They just uploaded a 2nd part of their BW and BBs discussion. I found it entertaining and included lots of personal anecdotes. Good for listening on a long trip. It’s called Music Lore.
https://m.youtube.com/watch?v=Hn9L2VFP-0w&t=1679s (BW and BBs episode part 1, BW and BBs talk starts around 18 min mark)
https://m.youtube.com/watch?v=qvsCQCN36Yg (BW and BBs part 2)
https://m.youtube.com/watch?v=qyiEXtcV698 (Scott Walker episode)