At the stone music room at North Hall, Evi Noll puts sound checks from the upper bench and repair notes from the masons beside the newest stone panel reflects a signal toward the rear doorway. The detail is easy to miss in a summary, but it determines whether a posted rule describes the place people actually use.

Evi Noll is the hall steward and chorus singer. On this river rise visit, the work begins with a dated entry and ends with a second check from someone who did not make the first one.

The sound checks from the upper bench and repair notes from the masons lists 85 seating rows where a spoken announcement is clear; the previous window lists 87. Ada Merrow checked both against ward records and interviews with people who use the service. The number is one part of a larger handoff between the office, the people who use the service and the staff expected to maintain it.

Singers value the hall’s old return. Public clerks need a clear spoken announcement at every seat. Residents and workers have asked the clerk to keep their accounts beside the source count rather than turn them into a single average.

The service office posts the new schedule and records its first operating count. The responsible office has begun the follow-up set by the board, which returned one new question to a separate hearing without reopening this docket.