Organum yprense. - Geloen, Ludo,; Bach, Johann Sebastian,; Bach, Johann Sebastian,; Geloen, Ludo,; Bach, Johann Sebastian,; Pachelbel, Johann,; Wenck, August Heinrich,; Stanley, John,; Dubois, Théodore,; Mendelssohn-Bartholdy, Felix,; Franck, César,; Geloen, Ludo,