This Sequential Resonation Machine by Joseph Casbarian routs any amplified sound source through a twelve position switch positioned at the top of the device. Each of the 12 valves contain a speaker, turning this steampunk looking device into a sequencer of sorts that uses pipe resonance to produce pitch. Sequential Resonation Machine
![Sequencer made of pipes seems more authentic](https://cdn-ak-scissors.b.st-hatena.com/image/square/cd27ca9e66f6b98ee44254ecb0d2214da6aa9bb1/height=288;version=1;width=512/https%3A%2F%2Fi0.wp.com%2Fmakezine.com%2Fwp-content%2Fuploads%2F2008%2F05%2Fsequential_resonation_machine1.jpg%3Ffit%3D400%252C565%26ssl%3D1)