. . . . . . . . "choir and orchestra performance" . . . "General Motors Symphony Orchestra: Christmas Music" . . . . . . . . "Broadcast over WJZ and the NBC Blue Network.\r\nBroadcast on WJZ\r\nTitle: Christmas Music\r\nEntered from New York Times concert listing and information contained in \"A Jussi Björling Phonography\" by Harald Henrysson, curator of the Jussi Björling Museum in Borlänge, Sweden." . "radio broadcast" . "1937-12-19T20:00:00"^^ .