Which texture involves a single melodic line along with supporting harmonies?

The concept of texture in music refers to how different melodic lines and harmonies interact within a piece. The correct answer is associated with homophony, which is characterized by a primary melodic line supported by chords or other harmonizing parts. In homophonic music, the focus is on the main melody, while the accompanying harmonies provide a rich backdrop that enhances the overall sound.

In contrast, monophony consists of a single melodic line without any harmonic support, making it distinct from homophony. Polyphony involves multiple independent melodies that are woven together, creating a more complex texture. Heterophony features variations of a single melody performed simultaneously, which again differs from the straightforward melodic and harmonic relationship seen in homophony.

Thus, homophony is the texture that most accurately describes a situation where there’s one leading melodic line supported by harmonies, making it essential for listeners to identify this fundamental aspect of musical texture.