Anne Bierwirth is a German contralto, focused on concerts and recordings of sacred music, appearing internationally. Besides the standard repertoire such as Bach's Christmas Oratorio, she has explored rarely performed Baroque music such as Bach's St Mark Passion and Reinhard Keiser's Passion oratorio Der blutige und sterbende Christus.

The Dreikönigskirche is a Lutheran Protestant church and parish in Frankfurt, the city's largest Protestant parish. It is located on the south bank of the Main in Sachsenhausen, opposite the Frankfurt Cathedral. The present church building, replacing an older church, was erected from 1875 to 1880 on designs by Franz Josef Denzinger in Gothic revival style. It features stained glass windows by Charles Crodel, installed in 1956, and an organ by Karl Schuke from Berlin completed in 1961.