 The main ring of 12 bells (with a sharp 2nd) was cast in 2010 by the Whitechapel Bell Foundry.These replaced the previous ring, 8 of which still remain in the tower and are used for the clock chime and carillon; the carillon plays a different tune every day of the week.In the 17th century the cathedral housed a ring of 5 bells, until they were recast and augmented to 6 in 1699.