Gregorian Chants for the Christmas Vigil: Responsorium: Ecce iam venit plenitudo temporis - Song by Anonymous, Benita Borbonus, Eva Budde, Carola Gunther, Regina Rottger, Markus Francke, Heinz Heidbüchel, Guido Kaiser, Harald Martini, WDR Rundfunkchor Köln