Pendulum Choir is an original choral piece for 9 a cappella voices and 18 hydraulic jacks. They brush by and avoid each other, creating subtle vocal polyphonies. Or, supported by electronic sounds, they break their cohesion and burst into lyrical flight or fold up into an obsessional and dark ritual. The body of singers travels from life to death in a robotic allegory where the technological complexity and the lyricism of the moving bodies combine into a work with Promethean accents.