Besides normal church services, he conducted them in regular masses with soloists and orchestra for Christmas and Easter and a yearly concert.

The concert of 2008, Vivaldi's Gloria and Haydn's Nelson Mass, was also performed at San Paolo dentro le Mura in Rome.

The church choir sings at services, including regular orchestral masses by Haydn, Mozart, Beethoven, and Schubert for Christmas and Easter, accompanied by members of the orchestra of the Hessisches Staatstheater Wiesbaden, with soloists from the Hochschule für Musik Mainz such as Andreas Karasiak and students.

[2] Both Chor and Kinderchor appeared in performances of Hermann Suter's Le Laudi (1998 and 2007), and in the German premiere of John Rutter's Mass of the Children in 2004.

[5][6] The organist was Ignace Michiels from St. Salvator's Cathedral in Bruges, soprano Natascha Jung, and oboist Leonie Dessauer.

[11] 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).

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.

[1] Until 2010, Dessauer played a regular concert on New Year's Eve on the Walcker organ at the Marktkirche, Wiesbaden, together with church organist Hans Uwe Hielscher.

To celebrate the bicentenary of Franz Liszt's birth in 2011, he played three major organ works by the composer on instruments that were built around the time of the compositions, Fantasy and Fugue on the Theme B-A-C-H, Variations on Bach's "Weinen, Klagen" (1863), and Fantasy and Fugue on the chorale Ad nos ad salutarem undam.

In addition to works by Reger, Dessauer chose rarely-performed church music by composers such as Herbert Howells, Benjamin Britten, Herbert Sumsion, Maurice Duruflé, Edward Elgar, Frederick Delius, William Lloyd Webber, Jules Van Nuffel, Joseph Ryelandt, Andrew Carter, Kurt Hessenberg, Rupert Lang, Morten Lauridsen, and Eric Whitacre.

In 2015 he conducted Bach's Missa of 1733 in B-minor in the newly-edited parts for the Dresden court, with members of the orchestra of the Hessisches Staatstheater Wiesbaden.

The same programme was performed in both Bruges and Wiesbaden by the Cantores and Chor von St. Bonifatius choirs, with Michiels playing the organ and Dessauer conducting.

The concert in Bruges on 23 October 1999 was named Eeuw van zinloos Geweld (Century of meaningless violence) and expressed it using Maurice Duruflé's Prélude et Fugue sur le nom d'Alain, Jules Van Nuffel's In convertendo Dominus, Jehan Alain's Litanies, Rudolf Mauersberger's Wie liegt die Stadt so wüst, Gerald Hendrie's Exsultate from the sonata In praise of reconciliation, and Duruflé's Requiem.

In November 2009 Dessauer performed Duruflé's Requiem again, this time with a choir of volunteers who wanted to commemorate the Holocaust in a Gedenkkonzert gegen Antisemitismus, or a concert against Antisemitism.

As a contrast, Dessauer performed Olivier Latry's Salve Regina organ meditations,[20] in which, according to a reviewer, he made the listener feel "...the complete cosmos of humanity, including the cruelty and violence, from which this prayer asks for salvation from" ("den gesamten Kosmos des Menschlichen nachempfinden ließ, einschließlich der Grausamkeit und Gewalt, aus der in diesem Gebet um Errettung gebeten wird").