ACTUAL-TEMPORAL-STRUCTURE — Recover what actually obtains before testing coordination

• Situation: A cycle, onset list, trace, notation, or geometry is called rhythm, but may be a prescription, representation, Method unfolding, or account rather than what obtains.
• Question: Which subjects and relations support the selected structure, what grounds it, and is a coordination trial useful now?
• First useful result or blocker: A.22-selected structure and grounded C.2.1 account—or missing bearer, relation, observation, or grounding. Keep future specifications and representations separate. For a selected coordination trial, add direct relations, conditions, observations, and next decision or stop.
• Start with: Begin with actual changing subjects and their use. Recover changes, Work parts or a continuous carrier, plus obtaining relations; use A.3.4/A.15.1 for change or Work and C.27.TA for the temporal claim. Use A.22 to select one structure and C.2.1 to ground its account. Distinguish structure, account, future specification, representation, Method unfolding and Work; periodicity, onsets, notation or geometry alone establish no structure. For coordination, name bearers and direct relations. Only when a trial can change the decision and warrants its burden, compare feasible interventions, try one within bounds, observe, then decide or stop. Open specification, representation, decision, causal, trial or domain patterns as their questions arise.
• Stop or return: Stop when answered. Return when bearer, relation, constraint, grounding, intervention, or use changes; domain Methods stay in DPF.