David Currington, in Australia, parts of which are enjoying (or enduring) a heatwave, in contrast to parts of the northern hemisphere, has drawn attention to the promotional disc on Youtube for the movie "Starmaker" from 1939.
Here "Go Fly A Kite"





and here "And Still The Bluebird Sings"




Thanks, David, and thanks to the Youtube poster,  "cdbpdx", whoever they may be.