François de Bedos de Celles (1709-1779), described as a "monk of notable erudition," was also a highly trained and supremely talented builder of organs in eighteenth century France. The greatest of his organs was Dom Bedos, built for the abbey of Saint-Croix in Bordeaux – a glorious instrument with rich blends and subtle colors, with nuanced balances and stark contrasts, with whispering pianissimos and roaring fortissimos. Leonhardt's chosen program opens with the organ extracts from François Couperin's Messe propre pour les couvents, deeply devout music that Leonhardt performs with absolute command and complete dedication. The remainder of the program is a collection of works by better- and lesser-known composers, ranging from three Voluntaries by John Blow and two Toccatas by Georg Muffat to a Fantasia by Abraham van den Kerchkoven and a Chaconne by Johann Caspar Ferdinand Fischer, but Leonhardt performs all of them with total commitment and rapturous ecstasy. Alpha's sound is once again the omega of recorded sound.