Target/codes: independently complete a new source-key six-event score by copying the opening exactly into blank final slots while keeping the contrasting middle; AC9AMUFD01, AC9AMUFC01. Prepare: public Return 2, A4 check, broad A/B cards; teacher key closed.
- Welcome · 3 min. This is a paper/card task; no device or audience is needed.
- Access · 4 min. Show source-key opening A B, middle B B, and two blank RETURN places. Read A=circle and B=striped square without filling blanks.
- Independent plan · 5 min. Child directs the two final cards in order, then compares their final pair to opening and middle.
- Child response · 7 min. Save first complete six-card score, explanation of exact return and one middle difference, plus an intended musical idea or paper evidence limit.
- Self-check · 4 min. Child checks first-to-first and second-to-second matches without adult answer cues.
- Close · 2 min. Consult the separate key later. A complete card plan cannot prove actual timbre hearing or sharing.