I came across this while going through the archives. It's an ad for 1050 CHUM back in 1946, picturing a conductor with the Toronto Symphony Orchestra and a music expert praising the AM station for devoting airtime to "beautiful music."

The copy reads:

"CHUM's presentation, "The Album of Beautiful Music", may well be termed public service broadcasting . . . the station is to be congratulated on helping to make Toronto radio a vehicle for good music. I am sure the large audience of music lovers in this area will join with those active in musical circles, in appreciation of CHUM's high cultural standards in afternoon broadcasting." 

It was just a little over 10 years later that CHUM made history by going all rock and roll, leaving then owner Allan Waters reportedly besieged with endless phone calls demanding he "turn off that noise."

I wonder what that same maestro would have had to say about that? (Perhaps he might have switched to CHUM-FM, which was all classical by that time.)