**CD edition** Dual piano meetings have a checkered history in the improvised music world. Although innovators such as Satoko Fujii and Keith Tippett have experimented notably with the form, the instruments’ orientation towards harmony and away from abstraction have defeated others efforts. Two piano duos, one Belgian and one French, have found a way out of the conundrum by hewing to contrasts in keyboard preparation and musical direction. Pak Yan Lau and Lionel Malric met in June 2014, witho…