These invented contexts invite an A/B musical source choice. A child may prefer plain notation or a non-personal idea. Nothing here claims a real machine's signal, a material's sound, a person's emotion, a family's structure, or a community's musical practice.
| Day | Bridge A | Bridge B |
|---|---|---|
| 71 | Paper museum: a card key labels two possible electronic tones. | Star postcard: choose which invented recipe might introduce a scene. |
| 72 | Library page: keep one source key for a short score. | Toy harbour: compare all-A and all-B plans without sounding them. |
| 73 | Game room: decide where one source change belongs. | Fabric pattern: match two source symbols without treating stripes as acoustic proof. |
| 74 | Workshop sketch: pair a source with an action, then seek a safe actual test. | Theatre model: distinguish a planned action from what a listener actually reports. |
| 75 | Fresh source-key puzzle with five unfamiliar placements. | Quiet tactile tray: track four gaps between five raised symbols. |
| 76 | Dry model station: keep the capacity test separate from any Music source trial. | Cardboard design table: describe an actual source/action event only if it occurred. |
| 77 | Paper boat score: move a source switch earlier. | Fictional garden page: preserve the first and second music plans. |
| 78 | Mini gallery: make a child-owned A/B source palette. | Space game: choose an intended contrast for a four-event score. |
| 79 | Real maker inquiry: use a permitted musical work and source-grounded context. | Private display: offer an original score to a willing recipient. |
| 80 | Fresh ending brief: one B only at the end. | Reading corner: explain why an ending source contrast was chosen. |