[1] At the end of the 18th century, a remodeling of the interior was performed by architect Wilhelm Meissner, during which the medieval furnishings were lost.

[1] As a teenager, Johann Sebastian Bach was a boarder at the school and a singer in the church choir, for two years from 1700 to 1702.

[5] Another famous pupil was Johann Abraham Peter Schulz who attended the school from 1757 to 1759, and who composed the melody for "Der Mond ist aufgegangen".

The organ dates back to an instrument built in 1708 by Matthias Dropa, a pupil of Arp Schnitger.

[4] St. Michaelis is a venue for sacred music in services and concerts,[2] including events of the Schleswig-Holstein Musik Festival.