In July 2005 Otto Sauter inaugurated the first international choir- and music festival „Musica Sacra a Roma“ in Rome and at the Vatican. Because of its symbiosis of masterpieces of arts and culture, the festival became a unique event in the fascinating scenery of the „Eternal City“ of Rome and the Vatican. World stars in music, like the Italian Soprano Lucia Aliberti, the Malmö Symphony Orchestra, the organ players Michael Schönheit and Christian Schmitt and many more, came together with 32 choirs from more than 20 nations in exclusive festival concerts, all in Rome‘s most beautiful and important churches, to set a sign for ecumenism and the unification of all nations in the world. Patron of the festival is Cardinal Paul Poupard, President of the Pontificium Consilium De Cultura, Vatican.