Hear those bells?

The Duke Carillon can be heard around campus, chiming every day from its home in the tower of the Duke Chapel.

Each weekday at 5:00 p.m. and after worship services on Sundays, the carillonneur plays the 50 bells, according to the Duke Chapel website. Although most carillons today are electrical, the Duke carillion is played entirely by hand.

“The Duke carillon is completely mechanical, played from a clavier of wooden batons and pedals,” University Carillonneur J. Samuel Hammond wrote in an email Thursday.

Hammond plays the carillon from a keyboard in a small cabin under the bells, according to the website. He begins each recital by playing the largest bell—weighing 11,200 pounds and measuring 6 feet, 9 inches in diameter.

The carillon features occasion-specific recitals. Each Friday, however, the bells play the Duke Alma Mater—“Dear Old Duke”—in a tradition started during Terry Sanfords reign as University President, the website said.

“In choosing music, I try to follow the academic, civic and religious calendars—including holidays—as well as public announcements for occasions, which might be suitably observed from the carillon,” Hammond said.