condition (record/cover): NM / NM Silver foil front, white back sleeve. Green labels. François Bayle succeeded Pierre Schaeffer as director of the GRM, but succession didn't mean mere continuity. L'Oiseau Chanteur / Lignes Et Points / L'Archipel / Espaces Inhabitables on Philips documents the transition: Bayle preserved the concrete inheritance while pushing it toward what he would call "acousmatic" music, sound conceived exclusively for loudspeaker listening, freed from any visual referent.
The singing bird of the first piece could still belong to Luc Ferrari's anecdotal world. But "Lignes et Points" and "L'Archipel" move toward abstraction, toward a cinema for the ear where images are purely sonic. "Espaces Inhabitables" completes the trajectory: here space is no longer geographical but mental, territory that exists only in the act of listening. Bayle understood that the loudspeaker wasn't just a delivery system; it was a new instrument requiring its own repertoire.