atonality(redirected from Post tonal)
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n. pl. a·to·nal·i·ties Music
1. The absence of a tonal center and of harmonies derived from a diatonic scale corresponding to such a center; lack of tonality.
2. A style of composition that lacks such a tonal center and its derived harmonies.
1. (Music, other) absence of or disregard for an established musical key in a composition
2. (Music, other) the principles of composition embodying this and providing a radical alternative to the diatonic system
a•to•nal•i•ty(ˌeɪ toʊˈnæl ɪ ti)
music composed without reference to traditional tonality and employing the chromatic pitches on a free and equal basis.