Pre-Glenn Miller? Interesting.
I don't know what stations air it, but there's a show called "Jazzology" that I used to listen to. It just happened to be on when I would drive to the trash dump ("convenience center" is the technical term) before my community was incorporated. I think the owner of the stations that air the show is the narrator, and he could learn a thing or two about sound quality. The recordings sound okay (most of them date back to the 30s or even before), and I think he says most of them are on CD.
I saw the movie "Brideshead Revisited". Julia is danicng after announcing her engagement at her 21st birthday party. I'm not absolutely certain of how much time has passed, but the movie opens during World War II and then we see "Ten Years Earlier" and Charles is starting college at Oxford, where he meets Julia's brother Sebastian, who later takes him home several times.
Anyway, I really liked the song that Julia and her fiance danced to, and the one that followed. That's REALLY not what we would hear on adult standards radio.