Chiming before major services in the Chapel of the Good Shepherd consists of four segments:
- The Changes
- Hymns (when possible including the hymns to be sung at the service)
- The "Signature" or quarter-hour time stamp when the service is to begin
- The tolling (nine successive strikes)
The third segment, a reduction of the Chelsea Square hymn melody into four phrases representing each quarter hour, occurs as follows:
Services beginning on the hour (Tuesday Evening Eucharist) will be rung with the full four quarters.
However, services beginning on the half-hour (Evensong) will be rung with only the first two quarters, and
Services beginning on the three-quarter-hour (Friday mid-day Eucharist) will be rung with the first three quarters. (We currently have no major services beginning on the quarter-hour but, if such were the case, they would be rung with the first quarter only. This is as a clock would work.)
The fourth segment – the nine successive strikes – follows the Signature after a pause of a few beats.