# Ten optional educator-ready Music starts · Days 41–50

Each session is **3 + 4 + 5 + 7 + 4 + 2 = 25 minutes**. The repeated four numbered beat places inside each phrase help children plan a musical relationship; they are not a demand for exact timed performance. Offer three [same-target routes](LEARNER-CARDS.md), [tactile/text sheets](print/TEXT-ALTERNATIVES.md), broad fixed X/REST cards, AAC and neutral adult scribing. A child may pass, stop or change route. All optional sound requires local listening/volume review and consent. Silence preserves a **compositional planning** target; it cannot evidence hearing or playing.

## Week 9 · Day 41 · A phrase can call and echo

**Target/codes:** give two original four-place phrases roles and make an exact echo, T | T = X REST X REST / X REST X REST; AC9AMUFD01, AC9AMUFC01. **Prepare:** [A call card](print/call-echo.svg), [Practice A](MATERIALS.md#a--an-echo-with-two-roles), two wide four-cell strips and role icons.

1. **Welcome · 3 min.** Show an inviting speech-bubble picture and explain that “call” and “answer” are labels for two positions in this invented musical plan; no child must call aloud.
2. **Model · 4 min.** Lay T = X REST X REST under counts 1–4. Put another whole T in the reply position. Point to the phrase divider and say the reply echoes every mark.
3. **Try together · 5 min.** Child compares the two four-cell groups: local 1 and 3 have X, local 2 and 4 rest, eight beat places and four planned events total.
4. **Child choice · 7 min.** Child chooses a fictional paper scene or neutral plain pattern, assigns role icons, and directs an exact echo using cards, marks or optional approved sound.
5. **Notice · 4 min.** Record the full score, role order and the child's intention. A paper echo is not evidence that either phrase was heard or played.
6. **Close · 2 min.** Keep the first T unchanged; tomorrow one answer mark can change.

## Week 9 · Day 42 · Change just one answer mark

**Target/codes:** keep first T unchanged and turn its second phrase local X3 to REST, T | T′ = X REST X REST / X REST REST REST; AC9AMUFD01, AC9AMUFC01. **Prepare:** [B change card](print/changed-answer.svg), [Practice B](MATERIALS.md#b--one-changed-answer-mark), broad rest tile.

1. **Welcome · 3 min.** Revisit two matching T cards and ask where a response can differ while the first phrase stays.
2. **Model · 4 min.** Replace only the second phrase's local count 3 X with REST. Trace unchanged counts 1, 2 and 4 in both cards; phrase 2 has one event, not two.
3. **Try together · 5 min.** Child names the only changed cell and shows eight beat places, two events in call, one in answer.
4. **Child choice · 7 min.** Child makes the one-mark change in a paper garden, puzzle-station or neutral score and states an intended quieter or shorter **musical plan**, with no claim about a listener's feeling.
5. **Notice · 4 min.** Save first attempt, changed location and explanation. Optional actual sound, if chosen, is observed separately.
6. **Close · 2 min.** Put the two wide cards in call-then-answer order for a safe hand-off plan.

## Week 9 · Day 43 · Who takes each turn?

**Target/codes:** use two role symbols to assign first T and then T′ while keeping their marks and sequence; AC9AMUFD01, AC9AMUFC01. **Prepare:** [C turn arrow](print/turn-arrow.svg), [Practice C](MATERIALS.md#c--a-turn-arrow-not-a-performance-demand), large circle/triangle cards.

1. **Welcome · 3 min.** Offer circle and triangle as non-personal role symbols. These are score labels, not required classmates or instruments.
2. **Model · 4 min.** Place circle above T and triangle above T′, with one thick arrow crossing the phrase divider. The arrow means planned “first, then,” not a measured speed or forced turn.
3. **Try together · 5 min.** Child points from role 1 to role 2, keeping T = X REST X REST and T′ = X REST REST REST intact.
4. **Child choice · 7 min.** Child directs role cards for a two-window gallery or plain score. If people or sound are later involved, ask each person and choose comfortable safe sources; a paper plan is enough today.
5. **Notice · 4 min.** Record the child's role allocation and score order. Never infer that two people actually took turns from the arrow alone.
6. **Close · 2 min.** Save the hand-off score and invite comparison with another possible answer.

## Week 9 · Day 44 · Two different answers can be intentional

**Target/codes:** compare changed answer T′ = X REST REST REST with contrasting U = REST X REST X after the same first T; AC9AMUFD01, AC9AMUFC01. **Prepare:** [D answer-choice board](print/answer-choice.svg), [Practice D](MATERIALS.md#d--choose-an-answer-for-a-musical-reason).

1. **Welcome · 3 min.** Place first T in a fixed left role. Show two possible whole four-cell reply cards; both are legitimate invented plans.
2. **Model · 4 min.** Trace T | T′ (two then one events) and T | U (two then two). U begins with a rest and answers on local 2 and 4. Do not call one reply universally “happy” or “better.”
3. **Try together · 5 min.** Child identifies which reply copies more of T and which changes the opening; all versions keep two four-place groups.
4. **Child choice · 7 min.** Child chooses a reply for a fictional paper bridge, light-box or own impersonal idea and explains what their choice is meant to do musically.
5. **Notice · 4 min.** Record chosen score and stated reason. A silent board cannot establish any heard contrast.
6. **Close · 2 min.** Put away practice cards. Tomorrow uses unfamiliar J cards without coaching.

## Week 9 · Day 45 · Fresh Check O: paper lantern reply

**Target/codes:** independently keep an unfamiliar call J and make a one-mark changed answer under the public brief; AC9AMUFD01, AC9AMUFC01. **Prepare:** [public O brief](STUDENT-CHECKS.md#check-o--paper-lantern-reply), [O A4](check/fresh-o.svg), broad cards; keep educator key closed.

1. **Welcome · 3 min.** Tell learners this new paper music puzzle helps choose next teaching; no sound or performance is needed.
2. **Access · 4 min.** Show J = REST X X X as the first phrase and an identical J in the reply slot. Read the request neutrally: keep first J, change only the reply's local count 2 X to REST.
3. **Independent plan · 5 min.** Child plans the full call and response, preserving reply counts 1, 3 and 4.
4. **Child response · 7 min.** Save the first complete eight-place response and explanation by cards, drawing, AAC, pointing or a neutral scribe.
5. **Self-check · 4 min.** Child checks two groups of four and one changed reply mark, without an adult placing the answer.
6. **Close · 2 min.** Later open the [separate key](teacher/KEY-AND-NEXT.md); use only after-check swaps after the independent first response.

## Week 10 · Day 46 · Choose a sound-source plan

**Target/codes:** add two different source labels to T | T′, while recognising that a **source card** is an intended option until actual sound is observed; AC9AMUFD01, AC9AMUFC01. **Prepare:** [E source cards](print/source-choice.svg), [Practice E](MATERIALS.md#e--two-sources-are-a-plan), circle/triangle tokens.

1. **Welcome · 3 min.** Show two simple paper source icons. A child can label them “source 1” and “source 2” without choosing a real object.
2. **Model · 4 min.** Circle/T: X REST X REST; triangle/T′: X REST REST REST. If locally reviewed, [candidate O cue](audio/cue-o-two-turns.wav) models two pure tones of **different pitch**; it does not imitate a real instrument or teach timbre by itself.
3. **Try together · 5 min.** Child keeps the rhythmic cells fixed while placing one source label per phrase and tracing the hand-off. Explain that a new source mark does not change beat places or event count.
4. **Child choice · 7 min.** Child chooses safe, locally approved sound sources or keeps abstract labels. If actual sound is chosen, everyone can stop; no striking or breath-holding is required.
5. **Notice · 4 min.** Record labels as a **plan**. Only describe an actually heard source, pitch or timbre when that sound was presented and observed.
6. **Close · 2 min.** Keep both phrase cards. Tomorrow swap source labels without changing the rhythm.

## Week 10 · Day 47 · Swap sound labels, keep the phrase

**Target/codes:** compare circle-on-T/triangle-on-T′ with triangle-on-T/circle-on-T′ and explain what changed versus stayed; AC9AMUFD01, AC9AMUFC01. **Prepare:** [E source board](print/source-choice.svg), two broad source icons.

1. **Welcome · 3 min.** Fix T | T′ in a high-contrast frame; agree both scores will keep their rhythm marks.
2. **Model · 4 min.** Swap only the circle and triangle source labels above the two complete phrases. Four-plus-four beat places and three planned events remain unchanged.
3. **Try together · 5 min.** Child shows one unchanged rhythm cell and the two changed source labels. Do not call visual source labels proven acoustic timbres.
4. **Child choice · 7 min.** Child selects an order of two abstract source cards for a paper robot or tactile picture, gives an intended sound contrast, or chooses the plain score. Optional reviewed sounds can be compared only if comfortable.
5. **Notice · 4 min.** Record source order **planned** and what actual sound, if any, the child noticed. A generic PCM pitch change is not evidence of two instrument timbres.
6. **Close · 2 min.** Save one version as a composing choice; tomorrow each learner can author both phrases.

## Week 10 · Day 48 · Compose a small musical conversation

**Target/codes:** author two four-place phrases with an exact echo, one-mark change or deliberate contrast, plus role/source labels and intended musical idea; AC9AMUFD01, AC9AMUFC01. **Prepare:** [F maker board](print/make-share.svg), [Practice F](MATERIALS.md#f--make-and-label-an-original-pair), broad fixed cards.

1. **Welcome · 3 min.** Offer two empty four-cell groups and a role arrow. A call and answer may be the same or different by the maker's choice.
2. **Model · 4 min.** Adult makes a new example X X REST REST / X REST REST REST: one local count 2 changes in the reply. Identify the adult's reason without claiming a listener felt it.
3. **Try together · 5 min.** Child tries a different echo/change/contrast on broad cards, and chooses or declines abstract source labels.
4. **Child choice · 7 min.** Child authors both four-place phrases, marks first/then roles, and states an intended musical effect or purpose by speech, AAC, pointing or a neutral scribe.
5. **Notice · 4 min.** Save the child's authored cells, relationship and intention. An adult may handle cards only under child direction. Optional sound is a separate observation.
6. **Close · 2 min.** Keep the score with its maker for tomorrow's optional sharing invitation.

## Week 10 · Day 49 · Real maker, real audience, real choice

**Target/codes:** ask a source-grounded question about an authorised real work if available, and optionally share a child-authored score/sound with an actually willing person; AC9AMUFE01 and AC9AMUFP01 only when their distinct conditions occur. **Prepare:** [F maker/share board](print/make-share.svg), [authentic source hold](AUTHENTIC-SOURCE-SLOT.md), the child's saved score.

1. **Welcome · 3 min.** Offer a real willing adult, a one-to-one paper share, optional comfortable sound, puppet rehearsal or pass. No recording or public solo.
2. **Model · 4 min.** Educator shares their own score with a willing person. If a real work is permitted and contextualised, name its maker/source; otherwise leave that inquiry on hold.
3. **Try together · 5 min.** Ask who made the selected real work and what its maker/approved source says about use. Do not infer cultural purpose from an invented rhythm.
4. **Child choice · 7 min.** Child decides whether a willing person receives their original score or approved sound, or whether to rehearse/pass. Stop or withdraw at any point.
5. **Notice · 4 min.** Log actual recipient, medium and whether receipt happened; separately note authentic source/title and child response if it occurred. An offer with no recipient is not sharing evidence.
6. **Close · 2 min.** Save child choice with dignity. The final check uses a new phrase and source-label change.

## Week 10 · Day 50 · Fresh Check P: two-role reply plan

**Target/codes:** independently transform unfamiliar V in the reply, preserving three specified cells, and change an abstract source label; AC9AMUFD01, AC9AMUFC01. **Prepare:** [public P brief](STUDENT-CHECKS.md#check-p--two-role-reply-plan), [P A4](check/fresh-p.svg), broad role/source cards; close key.

1. **Welcome · 3 min.** Introduce a new paper score puzzle to plan later teaching. It does not need a sound source or audience.
2. **Access · 4 min.** Show V = X X X REST first, and V again in the reply. Both starting source labels are circles. Brief: keep first V and its circle; in second V replace only local X1 with REST, keep 2–4, and change its source label from circle to triangle.
3. **Independent plan · 5 min.** Child considers the full two-phrase sequence and both source symbols with no model of the answer.
4. **Child response · 7 min.** Save first complete response by cards, drawing, AAC, pointing or neutral adult scribing, plus changed-cell and source explanation.
5. **Self-check · 4 min.** Child traces two groups of four, unchanged first V and one changed reply cell. No answer hint before first response is saved.
6. **Close · 2 min.** Use [separate key](teacher/KEY-AND-NEXT.md) for next steps. Actual hearing, playing and genuine sharing remain separately evidenced.