What role do pitch, rhythm, and harmony play in creating the overall melody of a musical composition?

Pitch, rhythm, and harmony are essential elements in creating the melody of a musical composition. Pitch determines the highness or lowness of a sound, rhythm controls the timing and pattern of the notes, and harmony adds depth and richness to the melody by combining different pitches. Together, these elements work in harmony to form the overall structure and emotional impact of a musical piece.