Anne Azéma and the ladies of Mission Voix Alsace By Caitlin Laird, Manager | December 5, 2014October 31, 2019 …rehearsing in the magnificent Strasbourg church of Saint Pierre le Jeune. The first of three performances of the awesome “Puer Natus Est” happens tonight, December 5, at Hagenau. Alsace, get ready! Wachet auf, ruft uns die Stimme!