5. The mechanism of the copper chiming drum can be compared to that of a music box. It is connected with the main clock and is activated every fifteen minutes. The arias we hear every quarter of the hour are parts of existing carillon music, adaptations of classical or contemporary works of music or new compositions of the town carillonneur. The pins are changed every two years. This still happens in the medieval fashion.
The present clock mechanism dates from 1912. The tower clocks need to be wound up daily. This is the task of the clock winders. By means of a crank they lift the three heavy weights of the pendulum clock.
From the gallery one has a marvellous view over the town.
