Wow, these are even “more classic” classics to exercise by! (And some vintage photos mixed in as well.) You are the collecting connoiseur of 78 rpm’s with a very large collection, aren’t you?
I have more than 1,000 78's and about the same number of 45's. However, I'm amazed at what's on Youtube, where I've found songs that I've spent years and even decades searching for as well as collector's items that I didn't know existed, such as Big Daddy's version of "Bacon Fat," which I just posted on this thread.