Today 10 church bells hang in the south tower.
One of them, the Ludgerus-bell, was cast in 1526 by Wolter Westerhues, a student of Gerhard von Wou, and originally hung in the parish church of St Ludgerus in Schermbeck.
It was sold to the cathedral in 1954.
The other nine bells were cast in 1956 by the Münster bellfoundry Feldmann & Marschel – their largest work.

During the manufacture of the nine bells in 1956 it came to be felt that the original ring should be expanded with a tenth, deeper bell (strike tone f⁰).
However, when the casting was complete, six of the bells were out of tune.
Despite this set back, the bells were consecrated and installed on 29 September 1956.
The affected bells were only fixed in 1979, after the employment of a bell expert.
This tone correction affected the three largest bells, which were arranged into individual tones.
At the same time, the State heritage office desired that the historic Ludgerus-bell be retuned; it had already been corrected in 1956 by Feldmann & Marschel.

Until 2011, the bells hung in a steel frame.
In the course of the cathedral renovations of 2011/2, this frame was replaced with a new oak wood frame, intended to produce a softer ring.
The new frame consists of 24 m3 of wood and its load-redistributing substructure weighs 6 tonnes.
In addition, the electrical system was renovated: the motor was replaced and each bell was equipped with its own electronically-operated strike hammer.

The bells are distributed over two levels in the frame, some at 34 m and some at 37 m above the ground: The three deepest bells hang on the lower level, under the rest of the bells.
The new frame includes space in the centre of the upper level for an expansion of the ring, perhaps with a bell with strike tone dis¹.
For the cathedral ring there is a distinct peal order for significant occasions (e.g. High feasts) and services (e.g. Pontifical High Mass) with a special number of bells or a special melody.
There is a "pre-peal" with the smallest two bells for each peal on the occasion of every high mass.
During the penitential seasons (Advent and Lent), the ring is reduced and at festivals it is increased or deepened.
With the bells it is possible to ring out a special melody; these include the Westminster Quarters (descending: h⁰, e¹, fis¹, gis¹) and the Salve Regina (ascending: e¹, gis¹, h¹ cis²).
Today 10 church bells hang in the south tower. One of them, the Ludgerus-bell, was cast in 1526 by Wolter Westerhues, a student of Gerhard von Wou, and originally hung in the parish church of St Ludgerus in Schermbeck. It was sold to the cathedral in 1954. The other nine bells were cast in 1956 by the Münster bellfoundry Feldmann & Marschel – their largest work.
During the manufacture of the nine bells in 1956 it came to be felt that the original ring should be expanded with a tenth, deeper bell (strike tone f⁰). However, when the casting was complete, six of the bells were out of tune. Despite this set back, the bells were consecrated and installed on 29 September 1956. The affected bells were only fixed in 1979, after the employment of a bell expert. This tone correction affected the three largest bells, which were arranged into individual tones. At the same time, the State heritage office desired that the historic Ludgerus-bell be retuned; it had already been corrected in 1956 by Feldmann & Marschel.
Until 2011, the bells hung in a steel frame. In the course of the cathedral renovations of 2011/2, this frame was replaced with a new oak wood frame, intended to produce a softer ring. The new frame consists of 24 m3 of wood and its load-redistributing substructure weighs 6 tonnes. In addition, the electrical system was renovated: the motor was replaced and each bell was equipped with its own electronically-operated strike hammer.
The bells are distributed over two levels in the frame, some at 34 m and some at 37 m above the ground: The three deepest bells hang on the lower level, under the rest of the bells. The new frame includes space in the centre of the upper level for an expansion of the ring, perhaps with a bell with strike tone dis¹.
For the cathedral ring there is a distinct peal order for significant occasions (e.g. High feasts) and services (e.g. Pontifical High Mass) with a special number of bells or a special melody. There is a "pre-peal" with the smallest two bells for each peal on the occasion of every high mass. During the penitential seasons (Advent and Lent), the ring is reduced and at festivals it is increased or deepened. With the bells it is possible to ring out a special melody; these include the Westminster Quarters (descending: h⁰, e¹, fis¹, gis¹) and the Salve Regina (ascending: e¹, gis¹, h¹ cis²).
Münster Cathedral