The chairs provide three distinct glimpses of a changing room. At the first birthday, eleven chairs are borrowed for ten guests. Later, three chairs stand on the balcony, then five. At the last party, only his chair remains at the table, while uncounted rows fill the balcony. These moments suggest accumulation without supplying a complete account of every party or every chair.
Attendance changes in several ways. The best friend returns under a license, but the host later refuses his greeting. The father's chair moves outside while his watch remains. The aunt attends upon her usual seat, which declines a photograph for her. A different girl repeats the appetite of the girl with the braid. The mother's handmade cake becomes a cake printed to her file. These are different forms of presence, not interchangeable entries in a guest list.
The door marks another sequence. Its two-note bell gives way to a voice announcing guests half a second early. The licensed friend's laugh arrives half a second late. Repeated rings carry the story across years, and another ring ends it. That final sound announces an arrival without identifying who has come or establishing that the cycle is over.