The Dom Tower's carillon automatically plays a brief melody every fifteen minutes, which is changed about four times a year.
The carillon has a large drum, a revolving cylinder on which the music is set using pins. The drum in the Dom was made by Jurrian Spraeckel between 1666 and 1669. Resetting the pins on the drums to change the melody takes five people a full day. The carillon underwent extensive restoration in the spring of 2012.
Melodies of the Dom (since 12 December 2018):
Gavotte from Concerto Grosso op. 3 no. 2 - G.F. Haendel (1685 - 1759)
March from opera Norma (fragm.) V. Bellini (1801 - 1835
Moderato - A. Tansman (1897 - 1986)
Seal Lullaby (fragm.) E. Whitacre (*1970)