Hornucopian dronepipe
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The 13 weirdest musical instruments ever

2. Hornucopian dronepipe
The hornucopian dronepipe is an entirely 3D-printed instrument designed by MONAD Studio, Eric Goldemberg and Veronica Zalcberg with musician/luthier Scott F. Hall. It's just one of a set of rather dystopian-looking instruments which together form an art installation. The other instruments are: two-string piezoelectric violin, one-string electric travel bass guitar, one-string piezoelectric monovioloncello and a small didgeridoo.