In the late '50s I had a 45 RPM record with the vocal CQ Serenade on one side and the instrumental version on the other side. At the time, while in college, I worked part time as an engineer at WKLZ, a little 500 watt daytime only AM radio station in Kalamazoo, MI. One of my responsibilities was to go into the station once a month after midnight and put the transmitter back on the air to run a frequency measuring test. I would put on music and announce the station call sign from time to time so that the consultant could find us and mearure our frequency. One night I put CQ Serenade on and played both sides of the record. A few days later when I stopped by the station the chief engineer asked me what I had done the other night. It seems that 10 or 12 QSL cards from hams had arrived from all over the country from that session!
K8SB 1-20-06
CQ Serenade sung in English
CQ Serenade sung in French
CQ Serenade Instrumental Version