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The 38èmes Rugissants Festival (Grenoble) 1996
The "Cantus Umbrarum" sound installation and concerts in the Choranche caves
Line up: Christoph Harbonnier, Christian Wittman, Jacques Derégnaucourt
(electronics, violin), Renaud Pion (flutes, saxophone, turkish clarinet,
bass clarinet, Ewi, electronics).
Lightwave was commissioned by the festival to conceive a special sound
installation in the Choranche subterranean caves, in the Vercors mountain:
a multichannel PA system was built up in galleries (600 meters long) and
two huge subterraneans spaces with lakes, rivers, waterfalls, etc.
The audience was guided by spelunkers along the itinerary, and thanks to
a special technical set-up, the recorded music was following the walkers,
from one loudspeaker to the next. At the end of the odyssey, in the
subterranean space of the great lake, Lightwave played a live concert for
every group of visitors. Natural ambient noises (echoes, water sounds)
mixed together with Lightwave electronic music.
Renaud Pion and Jacques Derégnaucourt added their own acoustic contributions
to the electronic soundscapes. One day, because of heavy rains on the Vercors
mountains, there was a flood within the caves and the subterranean rivers
and lakes went mad during a Lightwave concert. The concert had to be stopped,
in an emergency situation, to allow the audience to escape from the cave.
Lightwave, with the technical crew and the spelunkers, had to dismantle the
entire PA system and lighting set up, as well as the whole stage, in less
than an hour and placed all the equipment in a safe place, on a rocky
platform above the water. The following day, the entire set up was built
again for the last concert. The sound installation's soundtrack as well as
one of the 15 concerts was released by Horizon Music under the title of
"Cantus Umbrarum".
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