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Edit

An edit object is a high-level instruction to alter a musical property of a region as a whole. It can be used in one of two ways: to specify a new version of some aspect of a region’s music, or to copy, as closely as possible, an aspect from a different region.

Edits work on the entire region as a whole and alter all music they contain. For more precise control, alter specific part(s) of the timeline directly.

Data Item	Type	Required/ Optional	Description
`type`	text	required	The aspect of the music to edit (see below)
`source_id`	number	optional	The `id` of a `region` from which to copy the aspect of music. If omitted, entirely new music will be created for the provided aspect

Valid values for type are:

harmony: alter the harmony of the region
rhythm: alter the rhythm of the region

Example:

Copy the harmony from a region with id 35 to the active region.

{
    "type": "harmony",
    "source_id": 35
}

Composer new rhythms for the active region.

{
    "type": "rhythm"
}