The chime consists of a diatonic 10 in the key of F# with the largest weighing 2-2-4. There is also a b6th (C) and b4th (E). Seven of the bells were cast in 1981; four in 1980 and the treble dates from 1975. The bells are struck with electric solenoid hammers, and can be played from a piano-type keyboard or from a series of pre-programmed tunes.