In music, in the Middle Ages, Diabolus in Musica (literally "devil in music") was the name given to the presence of an interval of three tones (now called Tritone). This interval (diminished fifth) creates an expectation or a tension for the listener, as opposed to a perfect fifth, which produces a calming and conclusive effect also called resolution.
This is a performance project I'll have the opportunity to develop in June during Electrified Summercamp 2010
The idea is to perform a tritone as a continuum/drone from the top of high buildings of Gent, using manual fog horns, each connected to an inverted vacuum cleaner.
First tryout next week on the top of the Vooruit, I'm dying to hear how it will sound...