Found Electromagnetic Composition: [Trapest™‎ Ultrasonic Electro Magnetic Indoor Pest Control] - Charlie Pritchard
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This is an un-edited electromagnetic recording using a telephone tap or "bugging" the Trapest™‎ Ultrasonic Electro Magnetic Indoor Pest Control plug, so us humans can speculate about what music flies dislike...

The Electromagnetic Plug Orchestra - Charlie Pritchard
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