LilyPond Internals Reference: 1.1.83 StaffSpanEvent

### 1.1.83 StaffSpanEvent

Start or stop a staff symbol.

Event classes: music-event, span-event, staff-span-event and StreamEvent.

Accepted by: Staff_symbol_engraver.

Properties:

> `name` (symbol):

>   `'StaffSpanEvent`

>   Name of this music object.

> `types` (list):

>       '(event span-event staff-span-event)

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

#### Internals Reference v2.22.2 (stable-branch).