C08 · Music and a puzzle · ordinary Day 14
Complete source: C08 fictional room notes: one user wants rehearsal, another quiet puzzle; no booking system, sound test or agreement.
Ordinary educator example — after an own attempt
Worked reasoning after own attempt: Different times might reduce overlap; need booking/opening information before calling it a real timetable.
Limit/next check: Quiet is not a diagnosis; music is not assumed irresponsible. No invented preference survey.