3.2.21 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 of numbers)Pair of staff coordinates
(start . end)
, where start and end are vertical positions instaff-space
units of the current staff. For slurs, this value selects which slur candidate to use; if extreme positions are requested, the closest one is taken.
This grob interface is used in the following graphical object(s): ClusterSpannerBeacon.