2.2.134 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 and StandaloneRhythmScore.

LilyPond – Internals Reference v2.24.3 (stable-branch).