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PUT
Save unfinished lanes, track edits and section controls. Use request setup for account headers.

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Path

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string
required
Song ID.

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JSON body

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array
Instrument and Code lane state.
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array
Instrument and Code lane state.
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object
Edits keyed by track.
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object
Optional boolean lanes, mixer, fx, sculpt.
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object[]
Each entry has finite numeric start and end.
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number
30 to 300.
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number
Finite section controls.
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number
Finite section controls.
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number
Finite section controls.
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number
Finite section controls.

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Response

Send the state directly or inside { wip: ... }. Returns { success, wip, ttlSeconds }. The saved state expires after seven days without a refresh. A commit or reset clears it.