Klaus Mertens and consistency, Klaus Mertens sang in every piece that required a bass soloist, 190 in all." He is also involved in the project Dieterich Buxtehude – Opera Omnia of the same ensemble to record the complete works of Dieterich Buxtehude, begun in 2005. As a singer of lieder, he has interpreted songs of Claudio Monteverdi, Antonio Caldara, Wolfgang Amadeus Mozart and Franz Schubert among others. He has performed the title roles of the romantic oratorios "Elijah" and "St. Paul" by Mendelssohn and, as music of the 20th century, Paul Hindemith's "Requiem" and Igor Stravinsky's "Oedipus rex". In the classical repertory
St. Paul the Apostle Church and School St. Paul the Apostle Church and School St. Paul the Apostle Church is a Roman Catholic church established in 1935. It is a part of the Roman Catholic Archdiocese of Los Angeles, the largest diocese in the United States. The church's staff, the Paulist Fathers and the Daughters of Mary and Joseph, are also active in the school community and aid in the school's theology program. Both the church and the school are named after St. Paul the Apostle. St. Paul the Apostle School is a Roman Catholic coeducational K-8 school in Los Angeles, California. It is affiliated with St.