Quetzalcoatl

The Quetzalcoatl musical composition features all the technologies of ACROE, showing a double haptic system and immersive 3D virtual physical instruments and orchestra through mulchannel Sound Dome of 24 loudspeakers.

In that piece, Claude Cadoz implements huge physical models of very large instruments, models that exhibit the very difficult issue of non-linearities in the instrumental structures.

These Quetzalcoatl models were designed and built using GENESIS, a software of great complexity and reliability with a human-machine interface for modeling physically-based virtual instruments with unmatched functionality, carried by Claude Cadoz Nicolas Castagné.

Quetzalcoatl implements two force feedback gestural devices that are virtually coupled in order to allow collaborative playing of two instrumentalists, onto virtual instruments of great complexity and feeling the gesture of the other.

Part of the piece is created upstream with GENESIS. Another part, consisting of instrumental components extracted from the first part, is played live, as an accompaniment or as a counterpoint to the first part.

The sound materials involved are of a very diverse nature - percussive, resonant, multi-framed, etc. A particular and original aspect is that these different materials can be felt under the fingers by people involved in performance, who may be in the audience itself.

Quetzalcoatl immerses us, through hearing and seeing, into huge dreamlike Cadoz' universes with sequences as surprising as "Gongs-Brothers", " Lunar Big-bang ", or "Cosmic-snakes".

During the world premiere at the EASTN-DC MicroMusic festival 2018 @Romans-sur-Isère, the force-feedback instrumentalists were Claude Cadoz and Nicolas Castagné.

During the EASTN-DC AGORA Creative festival 2019 @ Grenoble, the force-feedback instrumentalists were Alan Neveux (pianist) and Gyorgy Kurtag (composer).