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1.1.8 AutoChangeMusic

Used for making voices that switch between piano staves automatically.

Properties:

iterator-ctor (procedure):

ly:auto-change-iterator::constructor

Function to construct a music-event-iterator object for this music.

length-callback (procedure):

ly:music-wrapper::length-callback

How to compute the duration of this music. This property can only be defined as initializer in ‘scm/define-music-types.scm’.

name (symbol):

'AutoChangeMusic

Name of this music object.

start-callback (procedure):

ly:music-wrapper::start-callback

Function to compute the negative length of starting grace notes. This property can only be defined as initializer in ‘scm/define-music-types.scm’.

types (list):

'(music-wrapper-music auto-change-instruction)

The types of this music object; determines by what engraver this music expression is processed.

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Internals Reference v2.21.0 (Vývojářská větev).