Gérard Grisey, meaning that these three works from the 80s are all built on the microscopic properties of sound, subsequently blown back up into unexpected shapes to create otherwordly, spectacular pieces of music.
In the purely orchestral Gondwana (1980), the gradual drift of the ancient supercontinent is represented by small textural elements of the music being reconfigured and arranged into new, more striking layers. If this wasn't spectacular enough, the other two works were even more fascinating for me. Time And Again (1986) adds a Yamaha DX7 synth to the orchestra, and again the musical textures and themes are transformed and mutated all over the place.
Désingtégrations (1982-3) is the definite highlight of this disc IMO, with a smaller ensemble playing against tapes generated by computer at IRCAM. Original tones and timbres from the instruments were fed into the computer and analysed to the smallest detail, with the resultant tapes meshing eerily with the ensemble and painting the tone colours with a wonderfully weird, alien luminosity. I'm reminded occasionally of Vangelis circa Invisible Connections. Download this one to enjoy the two orchestral works of course, but Désingtégrations is utterly unmissable.