Target/codes: revise ending while preserving own idea and chosen short form; partial AC9AMUFD01/FC01. Prepare: saved own first work/copy, broad sound/wait/words, invitation G.
- Welcome · 3 min. “Your idea stays. Try a new ending.” Child chooses private/show/music-alone route and first/revised preference.
- Model · 4 min. Adult idea local1,4 held; ending local2,4 changes to local1,3. Remove2,4/add1,3 only in ending; cue route one idea then ending stays. Count can change in open making.
- Try together · 5 min. Child spots an accidental idea change and restores it through exact correspondence. Adult model then removed; no fresh source/rules used.
- Child choice · 7 min. Copy own piece, change one or more ending decisions, keep idea and selected one/two-round form, read or try first/revised with reviewed familiar source or silent readers. Choose favourite/both, stop/pass.
- Notice · 4 min. Keep first/revised plan and removed/added ending choices; actual source/timing/cues may differ in live trials and are logged separately. Proposed stronger ending is not a tested physical model or listener effect.
- Close · 2 min. Child chooses version to keep or optionally share tomorrow; no required musical reason if unstated.