"In 1973, sound engineer Ángel Barco and Hispavox"s Classical Director, María Francisca Bonmatí, recorded a Gregorian Chants album titled Obras Maestras del Canto Gregoriano as a tribute to Santo Domingo de Silos on the occasion of the 900th anniversary of his death. The repertoire was performed by the Choir of Benedictine Monks of the Santo Domingo de Silos Monastery under the direction of Ismael Fernández de la Cuesta, a fine specialist in Gregorian and Medieval music and back then also Silos Congregation Prior. In 1994, the albums were reissued as a double CD containing a selection of the best Gregorian Chant repertoire of Santo Domingo de Silos. The album"s phenomenal success in Spain led to its global launch and the record subsequently became an unparalleled international breakthrough, turning into a worldwide phenomenon overnight. More than five million copies were sold and their triumph transformed the Monks of Silos into the most unusual music stars ever. The Monastery of Silos suddenly became a unique travel destination. Now, listeners can enjoy the Gregorian Chants for the first time in a re-mastered edition, using the latest studio technology. The anniversary is a truly great occasion to once again savor and appreciate the simple greatness and magic these chants born in Silos epitomize."