Answer:
Wstermelon Sugar-Harry Styles
Rain On Me-Lady Gaga
We're Good-Dua Lipa
Explanation:
These are just a few of my favorites
The answer is either repetition or rythm. Most likely repetition
Answer:
Leroy, Larry, Stacie, repeat
Not sure what graph you’re talking about but i know that when you play an instrument the pitches are different regarding the note and tone you play