Suter's Le Laudi (1998 and 2007), and in the German premiere of John Rutter's Mass of the Children in 2004. In 2006, Dessauer conducted Karl Jenkins's Requiem, composed in 2004. In 2010, he chose works by Bach, including his Mass in G minor and choral movements from cantatas BWV 140, BWV 12, BWV 120 and Wir danken dir, Gott, wir danken dir, BWV 29. In 2011 he conducted Haydn's Die Schöpfung. The children's choir sang along with the soprano. To celebrate the 150th anniversary of the choir in 2012, Dessauer commissioned Colin Mawby to compose the Missa solemnis Bonifatius-Messe. Mawby wrote the Mass in 2011 for the forces available at the church (soprano, choir, children's choir, oboe and organ), and the work was premiered on 3 October 2012. The organist was Ignace Michiels from St. Salvator's Cathedral in Bruges, soprano Natascha Jung, and oboist Leonie Dessauer. A second performance took place on 3 November in the Frankfurter Dom, with organist Andreas Boltz. In 2013 he performed Schubert's Mass No. 6 along with his Unfinished Symphony. The concert of 2014 was John Rutter's Magnificat. Dessauer first continued the tradition of the Stunde der Kirchenmusik ("hour of church music") monthly concert, and then began a series Boni-Musikwochen instead, grouping choral and organ concerts around a theme within the span of one to two weeks. The Musikwochen 2010, Reger und mehr ("Reger and more"), presented concerts given by Kent Tritle and Ignace Michiels, among others. Dessauer appeared with the Chor von St. Bonifatius in Azkoitia and San Sebastián on a Cavaillé-Coll-organ (1986) at both churches, at the Limburg Cathedral (1987), in St. Jakobus, Görlitz (1990), and in Memphis, Tennessee (1996). They appeared in Rome in 2008, when they performed Vivaldi's Gloria and Haydn's Nelson Mass in San Paolo dentro le Mura in concert, and sang during mass at St. Peter's Basilica. Organ recitals Dessauer has appeared in recitals in Europe and the U.S., at the Washington National Cathedral and St. Patrick's Cathedral, New York. He played the Kotzschmar organ at the Merrill Auditorium in Portland, Maine, and in the Cathedral of Our Lady of the Angels in Los Angeles. In 2004, he lectured at the National Convention of the American Guild of Organists in Los Angeles on the choral music of Max Reger, who was a member of the parish of St. Bonifatius while he studied and lived in Wiesbaden. In 2005, Dessauer