“A violinist walks into a bar…” (bar joke)

“A guy walks into a bar…” is a typical form of what has been called the “bar joke.” Sometimes the “bar” involves musical notation.
     
“A violinist walks into a bar. The conductor stops and makes the whole orchestra start from the top again” was posted on Twitter by Matthew Beardsworth | Composer on May 27, 2021.
 
     
Wikipedia: Bar (music)
In musical notation, a bar (or measure) is a segment of time corresponding to a specific number of beats in which each beat is represented by a particular note value and the boundaries of the bar are indicated by vertical bar lines.
     
Twitter
Ken Laws Live Long and Prosper
@kenlaws
Replying to @elakdawalla
A man stumbles into a bar.
“Hey! Get out of my sheet music!” yells the conductor.
1:51 AM · Jan 25, 2019·Twitter for iPad
 
Twitter
Cleave
@InkDragonWorks
Replying to @FourTimesCold
A music note walks into a bar. The conductor tells them to “BEAT it”
7:53 PM · Feb 18, 2021·Twitter Web App
 
Twitter
Matthew Beardsworth | Composer
@MattBComposer
A violinist walks into a bar.
The conductor stops and makes the whole orchestra start from the top again.
6:57 PM · May 27, 2021·Twitter Web App