### 1.1.31 HarmonicEvent

Mark a note as harmonic.

Event classes: harmonic-event, music-event and StreamEvent.

Not accepted by any engraver or performer.

Properties:

> `name` (symbol):

>   `'HarmonicEvent`

>   Name of this music object.

> `types` (list):

>   `'(general-music post-event event harmonic-event)`

>   The types of this music object; determines by what engraver this music expression is processed.

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