notehead
/ˈnoʊθhɛd/Definitions
1. noun
The round head of a musical note, typically a circle or an oval, that serves as the starting point for a staff or a ledger line.
“The composer carefully placed the notehead on the staff to create a soothing melody.”
2. verb
To mark or indicate a note with a notehead.
“The music editor noted that the notehead had been misplaced, so she had to re-do the entire page.”