Anyway, further anecdotal evidence. I was at a large "after party" for an event recently, probably one to hundred people present. Age was diverse, early twenties to thirties. I may not have been the oldest person there, but I was in a minority. There for some time. The dj did play the "Blister in the Sun" song everybody loves, and a brief track which was mainly white noise (no idea). Otherwise, the music was solidly thirty to forty years old - and the dance floor was crazy. Little Richard was about the oldest offering, but there was plenty of glam rock ("Little Willy"
Perhaps the place would have emptied if he'd played anything from this century (except "Blister" and maybe "Range Life").
ETA: The point made in the past is that it's inconceivable that a similar event in, say, 1980 would have had a soundtrack from the 1940s, unless it was some kind of theme party.










