Is Atonality Related to Harmony?

Atonality, in music, the absence of functional harmony as a primary structural element.

Is atonality a basic related term of harmony?

Other basic terms relating to Harmony are: Modality: harmony created out of the ancient Medieval/Renaissance modes. Tonality: harmony that focuses on a "home" key center. Atonality: modern harmony that AVOIDS any sense of a "home" key center.

What is the difference between tonality and atonality?

Atonality is simply the absence of tonality, tonality being the musical system based on major and minor keys. ... The difference is that in tonal music, dissonance doesn't last: dissonances are considered “unstable” harmonies that must be “resolved” to consonance.