This reminds me of the year 1969. I was on a small island off the Okinawan coast, stationed in the Air Force. Okinawa had two English speaking radio stations, one military owned and the other a privately owned station. The privately owned station would play music that was popular with the GI's and mostly that was rock. However, during second and third shifts, the trend would change from time to time. One night while I was working the graveyard shift, the station asked for callers to say what they wanted to hear...heavy metal or country. My partner and I, able to sit at the telephone switchboard, called constantly and voted for heavy metal. If I remember right, we won. We would put the entire compound on the radio and now and then "turn it up". Got a few complaints from the old lifers, but even the commander of the detachment gave us the thumbs up. When the song "Ina Goda Divida" came on, the volume went way up. At that time, besides Hendrix, Led Zepplin, The Who and more were tops.