(Deutsche Grammophon) The pianist sisters’ celebration of their 55 years of recording is a thoughtfully curated compilation that reveals the extent of their omnivorous musical appetites In 1969, two teenage students at the Paris Conservatoire recorded Olivier Messiaen’s formidable Visions de l’Amen under the composer’s doubtless nerve-racking supervision. It was released in 1970. Fifty-five years later, Katia and Marielle Labèque’s musical curiosity is undimmed as this handsome three-disc tribut