 The ring of 12 bells is augmented with two additional semitone bells. A sharp treble bell cast by John Taylor & Co in 1969 is the smallest bell in the tower and a "flat 6th" cast by John Taylor & Co in 1951 and allow different diatonic scales to be rung. All the bells have been tuned on a lathe; the tenor bell was tuned in 1903 and strikes the note of B (492 Hz). The St Mary Redcliffe Guild of Change Ringers was founded in 1948.
