Change ringing is a method of ringing church bells in a series of mathematical patterns. Instead of ringing the bells in a fixed order, ringers create different sequences, known as "changes," by altering the order in which the bells are struck. This practice is often performed in towers with a set of tuned bells, typically ranging from six to twelve. The art of change ringing requires teamwork and precise timing, as each ringer must listen and respond to the others. It is commonly associated with English churches and has a rich history, with many dedicated societies and competitions celebrating this unique musical tradition.