http://www.phonotopy.org/volta-live.html This instrument consists of a powerful plasma speaker developing around 50Kv electrical arc producing the sound between two electrodes. It’s basically a high voltage modular synthesizer with audio, gate and cv input, all in double, allowing to control the device by sequencer and oscillators. The arc functions as an electrical string with tuning settings, making harmonics and resonances, some kind of high voltage lutherie. The magnetic disturbances it produces are huge, it can disturb any electronic devices around, and it gives the possibility to add several magnetic sensors to enrich the spectrum of the sound and to make it sound like a evil harsh synth.