Water drop sequencer

MÃ¥rten Bergkvist’s elegantly simple sequencer installation –

The Water drop sequencer is an interactive sound installation. It creates sound by water drops falling on suspended iron bars with piezo elements attached. The viewer or performer can control which tones will be played by placing water bottles upside down in holes that are centred over the iron bars. It is also possible to control the speed of the dripping.

[via Califaudio]