MaiSay · Voice Studio · Completion beat 1

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Say where you’re from · complete

97 %

Lesson score · six exercises, three of them spoken.

Three takes out loud, nine parts clear.

Part by part 9/10 parts clear

我 wǒ final · tone 2/2

是 shì Tone 4 · short 2/3

越南 Yuènán 2 syllables · 5 parts 5/5

Dev note · contract addition

The snapping board needs per-part identities and grades, which LessonSummary does not carry. SpokenLine has partsClear/partsTotal and a single repairChip — a count cannot be animated part by part. Add SpokenLine.parts: List<PartVerdict> — { syllableIndex, hanzi, pinyin, part: initial|final|tone, grade: green|amber|red|uncertain }, ordered as spoken, na parts omitted so the denominator stays right (我/越 → 2 parts, not 3).

Sound · this beat is silent

Haptic tick per part as it lands, and no tone. The rising green triad means CLEAR and is reserved for full-coverage clear evidence — it may sound on complete-score-clear.html and nowhere else. This sequence's one primary chime is the neutral voice-received signature on beat 2.