I was trying to consider what created the demand for records like this, and what happened to that demand. All I could think of was NPR segments.
Part 3: 1929 To 1940 WHEN WALL STREET LAID AN EGG with the actual voices and music of Morton Downey, Ben Bernie, Rudy Vallee, Arthur Tracy, Bing Crosby, Helen Morgan, Ben Lillie, Jimmy Durante, Cole porter, Glenn Miller, Tommy Dorsey, Cab Calloway, Benny Goodman, Kate Smith
Show biz Part 3
RCA Victor (1953)
Part 4: 1940 To Date FROM TV TO 3-D