The inventor of the Ondes Martenot, a theremin like instrument, got the idea because he was a radio operator. Every day, around sunrise and sunset, he could hear amazing musical sounds coming from his radio equipment. Alas, this experiment can’t be duplicated on earth any more because there is too much intentionally broadcast radio, but I’m guessing on the far side of the moon, you can still hear all the weird cosmic effects on radio.
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