Harmati wrote the song for his friend, Jan Peerce, the leading singer at Radio City Music Hall. Peerce recorded it under the name Paul Robinson and then under his own name years later. The 1945 recording became a giant hit for Peerce, outselling all his many operatic recordings and ended up becoming the best-selling record made by opera and concert singers. A revised 1958 version was the one Peerce used in later live performances. More of that QRS MIDI recordings.