### 2.2.98 Rhythmic_column_engraver

Generate `NoteColumn`, an object that groups stems, note heads, and rests.

This engraver creates the following layout object(s):

NoteColumn.

`Rhythmic_column_engraver` is part of the following context(s): CueVoice, DrumVoice, GregorianTranscriptionVoice, KievanVoice, MensuralVoice, NullVoice, PetrucciVoice, TabVoice, VaticanaVoice and Voice.

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