„The reacTable is an electro-acoustic music instrument with a tabletop Tangible User Interface that has been developed within the Music Technology Group at the Universitat Pompeu Fabra in Barcelona (…)“ weiter bei Wikipedia

Reactable live in Berlin:

Worms making music:

Circuit bending is the creative short-circuiting of low voltage, battery-powered electronic audio devices such as guitar effects, children’s toys and small synthesizers to create new musical instruments and sound generators.