I should add that I sort of base "what I play" upon the requests that I get too - and I still get TONS of requests for tunes that are from the 1920 thru 1940s, so I still play a fair amount of those at places where "older folks" reside. So at the retirement homes and such, based on the requests (I ask for requests at every gig) still are most predominant as 1930s-1940s songs, so I still do a good amount of that in addition to the 1950s and 1960s (and occasionally newer) stuff.

When I'm playing a restaurant or private party or whatever, the "%" values change dramatically of course! (depending on the event and age-range attending) ...