page_title: Campanology
section_title: Full circle change ringing
hierarchical_section_title: Campanology / Full circle change ringing
caption_attribution_description: English: Change ringing in Stoke Gabriel parish church, south Devon, England. Thanks to the bell ringing captain for allowing me to watch practice. Taken by Adrian Pingstone in July 2003 and placed in the public domain.
context_page_description: Campanology is the study of bells. It encompasses the technology of bells – how they are cast, tuned, rung, and sounded – as well as the history, methods, and traditions of bell-ringing as an art.
  It is common to collect together a set of tuned bells and treat the whole as one musical instrument. Such collections – such as a Flemish carillon, a Russian zvon, or an English "ring of bells" used for change ringing – have their own practices and challenges; and campanology is likewise the study of perfecting such instruments and composing and performing music for them.
  In this sense, however, the word campanology is most often used in reference to relatively large bells, often hung in a tower. It is not usually applied to assemblages of smaller bells, such as a glockenspiel, a collection of tubular bells, or an Indonesian gamelan.
  A campanologist is one who studies campanology, though it is popularly mis-used to refer to a bell ringer.
context_section_description: In English style (see below) full circle ringing the bells in a church tower are hung so that on each stroke the bell swings through a complete circle; actually a little more than 360 degrees. Between strokes, it briefly sits poised 'upside-down', with the mouth pointed upwards; pulling on a rope connected to a large diameter wheel attached to the bell swings it down and the assembly's own momentum propels the bell back up again on the other side of the swing. Each alternate pull or stroke is identified as either handstroke or backstroke - handstroke where the "sally" (the fluffy area covered with wool) is pulled followed by a pull on the plain "tail". At East Bergholt in the English county of Suffolk, there is a unique set of bells that are not in a tower and are rung full circle by hand. They are the heaviest ring of five bells listed in Dove's Guide for Church Bell Ringers with a tenor of 26 long cwt 0 qr 8 lb (2,920 lb or 1,324 kg) and a combined weight of 4 long tons 5 cwt 2 qr 24 lb (9,600 lb or 4.354 t)
  These rings of bells have relatively few bells, compared with a carillon; six or eight-bell towers are common, with the largest rings in numbering up to sixteen bells. The bells are usually tuned to fall in a diatonic scale without chromatic notes; they are traditionally numbered from the top downwards so that the highest bell (called the treble) is numbered 1 and the lowest bell (the tenor) has the highest number; it is usually the tonic note of the bells' scale.
  To swing the heavy bells requires a ringer for each bell. Furthermore, the great inertias involved mean that a ringer has only a limited ability to retard or accelerate his/her bell's cycle. Along with the relatively limited palette of notes available, the upshot is that such rings of bells do not easily lend themselves to ringing melodies.
   
  Instead, a system of change ringing evolved, probably early in the seventeenth century, which centres on mathematical permutations. The ringers begin with rounds, which is simply ringing down the scale in numerical order. (On six bells this would be 123456.) The ringing then proceeds in a series of rows or changes, each of which is some permutation of rounds  (for example 214365) where no bell changes by more than one position from the preceding row (this is also known as the Steinhaus–Johnson–Trotter algorithm).
  In call change ringing, one of the ringers (known as the Conductor) calls out to tell the other ringers how to vary their order. The timing of the calls and changes of pattern accompanying them are made at the discretion of the Conductor and so do not necessarily involve a change of ringing sequence at each successive stroke as is characteristic of method ringing. Some ringers, notably in the West of England where there is a strong call-change tradition, ring call changes exclusively but for others, the essence of change ringing is the substantially different method ringing. As of 2015 there are 7,140 English style rings.  The Netherlands, Pakistan, India, and Spain have one each.  The Windward Isles and the Isle of Man have 2 each.  Canada and New Zealand 8 each.  The Channel Isles 10.  Africa as a continent has 13.  Scotland 24, Ireland 37, USA 48, Australia 59 and Wales 227.  The remaining 6,798 (95.2%) are in England (including three mobile rings).
caption: Change ringing in a church in Devon, England
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