A carillon is a musical instrument composed of at least 23 cup-shaped bells played from a baton keyboard using fists and feet (such an instrument with fewer than this number of bells is known as a chime). Carillon bells are made of bell bronze, approximately 78% copper and 22% tin. Carillons are normally housed in bell towers. The carillon has the widest dynamic range of any mechanical (non-electric) musical instrument.