Two performers operate four powerful spring propulsion units. By manoeuvring huge levers, they expel 4 missiles that slide along the floor and then pull them back to their initial position. Depending on their speed, the missiles, equipped with loudspeakers, generate sounds which transform themselves in real time according to the speed of the missiles. The rhythm dictated by the repetitive physical operations of the operators generate sounds that develop and organise themselves to form a unique musical work. Its structure is based on the efficacy of ballistic engineering and consists of a succession of sounds coming from the volleys of shots and metallic deflagrations.

The performance exists in two configurations: 2 or 4 propulsion units. Duration : 20 minutes.


4 loudspeakers being shot
1 loudspeaker being shot
charging the canons
shooting with 2 canons
public performance, Lausanne
public performance, Lausanne

technical specifications

Material to be supplied by the organisers:
1 active subwoofer min. 300W with cabling.
3 projectors (1000-2000 W) to light the performers.
2 electric plugs 230 V 16A

Area of exhibition:
No stage, only standing public
Ground surface needed: min. 5.0 X 15.0 m
Types of flooring: flat and rather smooth. Parquet, smoothed raw cement, tiles, smoothed asphalt...

Assembling of the machine:
Time of assembling: 6 h
Time of dismantling: 1.5 h


places of exhibition

- Festival Hespérides II, Musée Cantonal des Beaux-Arts, Lausanne (CH)

- Galerie Otwarta Pracownia, Cracovie (PL)
- EPAF 07, Centre for Contemporary Art, Ujazdowski Castle, Warsaw (PL)

- Musée des Beaux-Arts, La Chaux-de-Fonds (CH)
- Centre culturel A-post, Le Locle (CH)
- 4X10, Kongresshaus, Biel (CH)


- Ville de la Chaux-de-Fonds
- Loterie Romande