Hi, Dr. Know (I am not worthy),

Commercial radio repeats "biggest hit oldies." Given the span of recording existance, how is it "biggest hit oldies" isn't a vast body of repetive AirPlay. Here's my comment:  When you listen to a tone along time, the sound goes away.  You don't notice it, like traffic sounds or living by an airport. That way the commercials sound "interesting."  Thank you. ~buskr 

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