Henry Dagg is a sound sculptor and builder of experimental musical instruments who formerly worked as a sound engineer for the BBC. His works include a pin barrel harp or sharpsichord which was commissioned for the English Folk Dance and Song Society, a pair of steel sculptural musical gates for Rochester Independent College and an artificial " cat organ" (using squeaky toys in place of actual cats), which he played to the amusement of an audience of celebrities at a garden party hosted by Prince Charles. [1] [2] [3]