What is a melody that accompanies the main melody called?

A melody that accompanies the main melody is referred to as a countermelody. This term specifically describes a secondary melody that is played alongside the primary melody, adding depth and complexity to the overall musical texture. The countermelody complements the main melody, often contrasting in rhythm or pitch, creating a richer listening experience.

In contrast, a chorus typically refers to a repeated section in a song, often featuring lyrics that are sung by multiple voices. Harmony involves chordal support for the main melody, which can be achieved through the simultaneous sounding of notes that create a pleasing effect but does not imply a new melodic line. A theme often refers to the principal idea in a piece of music, specifically the main melody itself, rather than an accompanying line. Understanding these distinctions helps clarify the role of each component within a musical composition.