In the page's words:

The Musik an St. Lorenz Nuremberg organizes numerous musical events throughout the year under the direction of St. Lorenz cantor Michael Riedel! Highlights include the large choir concerts with the St. Lawrence Bach Choir and the "International Organ Summer Nuremberg - the organ world as a guest in St. Lawrence", where our organ system, the 11th largest in the world, can be admired!