There are various synonyms for the term "carillon playings" which refers to playing a set of bells in a device called a carillon. Some of the synonyms include bell chimes, peals of bells, bell ringing and campanology. These terms signify the sound created by the clappers of bells that are closely packed and tuned in a single system. Such systems are built to allow the bells to be played by a keyboard or automatic device. Carillon playing is typically used in church functions, and some modern carillons are programmed to play certain tunes at specific times of the day. Other uses for carillon playing include outdoor events, national celebrations, and special occasions.