as a single layer of winding is enough to keep the clock going for 12 hours, it could have been kept exact to within two minutes per day if it had been wound twice per day. a peace was reached by the end of the year. it is intended as a starting point for research into these areas of study. unfortunately the first materials have been always skin with little mechanical strength. the breaking of a champagne bottle across the bottom station ended the quiet years. each new musical director chooses songs to add or remove from the previous year's repertoire. 