what term describes the relationship between two or more notes played or sung simultaneously?\na melody\nb…

what term describes the relationship between two or more notes played or sung simultaneously?\na melody\nb harmony\nc rhythm\nd dynamics
Answer
Brief Explanations:
Melody is a single - line sequence of notes. Rhythm is about the pattern of long and short notes in time. Dynamics refer to the loudness or softness of music. Harmony describes the relationship between two or more notes played or sung simultaneously.
Answer:
B. Harmony