### 2.2.81 Output_property_engraver

Apply a procedure to any grob acknowledged.

Music types accepted:

apply-output-event

`Output_property_engraver` is part of the following context(s): ChordNames, CueVoice, DrumStaff, DrumVoice, Dynamics, FretBoards, GregorianTranscriptionStaff, GregorianTranscriptionVoice, KievanStaff, KievanVoice, MensuralStaff, MensuralVoice, PetrucciStaff, PetrucciVoice, RhythmicStaff, Score, Staff, StaffGroup, TabStaff, TabVoice, VaticanaStaff, VaticanaVoice and Voice.

#### Internals Reference v2.18.2 (稳定分支).