(30:00)
Clar., trb., vln., vc., percussion, stereo tape
(tape identical with Elektrochronik)
First performance: 1982 La Rochelle Festival (Ensemble Itineraire)
CD: Erato ECD 75554 (1989) Ens. InterContemporain
CD: BMC Records 092 UMZE Ensemble
Edition Salabert Paris (EAS 17676)