This week on Music Thursdays, I present a video from the YouTube channel Ivan Owen.  Inventor Ivan Owen and his daughter built air-powered “musical stairs” using pressure plates and antique organ pipes. After their build was complete, the pair ordered a pizza to see how the delivery man would react to the sound.  The delivery man was surprised by the stairs, enjoy!

https://youtu.be/d8B_fKmBDAs

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