Important Records for French composer Eliane Radigue, the second (I was going to say first, but that's really Pauline Oliveros by a few years) lady of extreme minimalist electronics. The other one I have is Transamorem-Transmortem (1973); following that behemoth of glacial eternal ARP sound, Radigue took a few years out to explore Tibetan Buddhism, which would inform her music and entire life from then on.
Returning in 1978 to create some music for a choreographed performance (at Robert Ashley's suggestion), Radigue produced the three pieces that were eventually released on this CD. Triptych is possibly a more accesible entry point to Radigue's unqiue soundworld than Transamorem; each of these pieces has its own distinct character, and each one only lasts between 18 and 24 minutes (practically Ramones-level brevity for this composer).
The first is an enjoyable sensory cleanse for the ears that whooshes around like a sandstorm or seashore on a distant planet, settling into an almost melodic rise and fall around the halfway point. The second and longest is an eerie but not unpleasant quivering drone, that in its last five minutes introduces an insistent, rhythmic two-note pattern in the right channel that fades just before the end. The triptych is completed with 20 minutes of a more rhythmic drone, almost something Tangerine Dream might have built from circa Phaedra, but much rawer and unbothered by effects and production; just pure sound. I think that nails what I love about Eliane Radigue's music - it's like the clear mountain spring water of electronic sound, I've scarcely if ever heard anything more pure and elemental.