"Static. Faint voices. Seven slow, monotonous tones. A pause. Suddenly, you hear music--one of those wind-up songs played by a child's toy. The melody repeats three times. A pause. Suddenly, you hear a female voice counting off the numbers 1, 2, 3, 4, 5, 6, 7, 8, 9, 0 in German. A pause. She repeats the numbers. A pause. The children's toy melody returns." This is a very suitable description for the audio files you are going to listen if you click here.
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"...The Conet Project are actual messages sent from a government or group to a spy..."