cluster-beacon-interface - LilyPond program-reference
Description: LilyPond program-reference

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#### cluster-beacon-interface

A place holder for the cluster spanner to determine the vertical extents of a cluster spanner at this X position.

##### User settable properties:

`positions` (pair)
  Pair of staff coordinates `(`left`.` right`)`, where both left and right are in the staff-space unit of the current staff.

This grob interface is used in the following graphical objects: ClusterSpannerBeacon

This page is for LilyPond-2.8.8 (stable-branch).

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