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2.2.136 Spanner_tracking_engraver

Helper for creating spanners attached to other spanners. If a spanner has the sticky-grob-interface, the engraver tracks the spanner contained in its sticky-host object. When the host ends, the sticky spanner attached to it has its end announced too.

Spanner_tracking_engraver is part of the following context(s) in \layout: ChordGridScore, Score, StandaloneRhythmScore and VaticanaScore.