The Carlsberg Company of Denmark provided funding for the construction of the 50-bell carillon. The bells were cast by the Royal Eijsbouts foundry of Asten, the Netherlands, and were installed in the tower in 1974. The largest bell weighs 4,850 pounds and the instrument transposes up a perfect fourth from concert pitch. Five of the large bells are equipped with outside hammers to sound the Cambridge Quarters and hour strike. The project to completely renovate the carillon was completed in July 2022 by  Meeks, Watson and Company from Georgetown, Ohio. Gerald Martindale plays the Exhibition Place carillon once or twice most weeks of the year.