How do harmony and melody differ?

Harmony and melody serve distinct roles in music composition, and the correct answer highlights this difference aptly. Harmony is defined as the combination of simultaneous notes, which creates a fuller sound and enriches the overall texture of music. It involves chord structures and the relationships between different notes played together, providing depth and context to the musical piece.

On the other hand, melody refers to a single linear sequence of notes that are perceived as a cohesive entity. It is typically the part of the music that one might hum or sing, characterized by its unique contour and rhythm. The distinction between harmony and melody is crucial in understanding how musical compositions are structured, as they work together to create a complete musical experience: harmony supports and complements the melody, adding layers and complexity to the sound.

The other options mischaracterize these musical concepts. The reference to melody being static incorrectly implies that a melody cannot change or evolve; in reality, melodies can take on dynamic qualities. The idea that harmony relates to rhythm misinterprets the terms, as rhythm pertains more to the timing of notes and is different from the function of harmony and melody. Lastly, presenting them as synonymous fails to recognize the distinct roles they play within musical compositions.