Which texture is defined as a single melodic line with no harmony?

• A. Homophony
• B. Polyphony
• C. Monophony
• D. Heterophony

Answer: (C)

A single melodic line with no harmony is monophony. This texture features one tune heard by itself, with no accompanying chords or secondary melodies—whether sung by one person or several in unison. You might think of Gregorian chant, where everyone sings the same melody together without harmonic support.

In contrast, harmony involves chords supporting the main melody, which is what you hear in homophony. When multiple melodies move independently at the same time, that’s polyphony. Heterophony has the same melody performed with slight variations by different voices or instruments simultaneously. The description in the question matches monophony, the pure, unaccompanied line.