Carillon strike the inside of the bells, allowing the performer on the bells, or "carillonneur/carillonist" to vary the intensity of the note according to the force applied to the key. Although unusual, real carillons have occasionally been fitted to theatre organs (instead of the metal bars or chimes more often used in simulation), such as the Christie organ installed at the Regal Cinema, Marble Arch, in London. A carillon-like instrument with fewer than 23 bells is called a chime. The carillon is the second heaviest of all extant musical instruments, only ranking behind the largest pipe organs. The heaviest carillon in
Bok Tower Gardens some selections from the archives about the history of the Gardens, Singing Tower, and Edward Bok are on display in the Visitor Center. The Anton Brees Carillon Library was established in 1968 after the death of Anton Brees, the beloved first carillonneur of the Singing Tower. The library is located on the fifth floor of the Singing Tower. It is often considered to be one of the largest collections of carillon-related materials in the world. The Anton Brees Carillon Library includes over 1500 books, 200 collections of scores for keyboard instruments, 3000 scores and musical compositions for carillon, 1600 audio