Tonality

Entertainment / Music / Tonality: Principle of organization around a tonic, or home, pitch, based on a major or minor scale.
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Atonality

Entertainment / Music / Atonality: Total abandonment of tonality (centering in a key). Atonal music moves from one level of dissonance to another, without areas of relaxation. MORE

Polytonality

Entertainment / Music / Polytonality: The simultaneous use of two or more keys, common in twentieth century music. MORE

Tonal

Entertainment / Music / Tonal: Based on principles of major-minor tonality, as distinct from modal. MORE