First Mass for Christmas (Erste Messe an Weihnachten/Première Messe de Noël) - as practise at St. Mark's, Venice - Anonymous: First Mass for Christmas (Erste Messe an Weihnachten/Première Messe de Noël) - as practise at St. Mark's, Venice: Preface "Per omnia saecula - Dominus vobiscum - Sursum corda" Preface proper to First Mass of Christmas "Ver dignum est"