The emancipation of the dissonance was a concept or goal put forth by composer Arnold Schoenberg and others, including his pupil Anton Webern. The phrase first appears in Schoenberg's 1926 essay "Opinion or Insight?" (Schoenberg 1975, 258–64). It may be described as a metanarrative to justify atonality. Jim Samson (1977, 146–47) describes:
As the ear becomes acclimatized to a sonority within a particular context, the sonority will gradually become 'emancipated' from that context and seek a new one. The emancipation of the dominant-quality dissonances has followed this pattern, with the dominant seventh developing in status from a contrapuntal note in the sixteenth century to a quasi-consonant harmonic note in the early nineteenth. By the later nineteenth century the higher numbered dominant-quality dissonances had also achieved harmonic status, with resolution delayed or omitted completely. The greater autonomy of the dominant-quality dissonance contributed significantly to the weakening of traditional tonal function within a purely diatonic context.
Composers such as Charles Ives, Dane Rudhyar, Duke Ellington, and Lou Harrison connected the emancipation of the dissonance with the emancipation of society and humanity. Michael Broyles calls Ives tone-cluster-rich song "Majority" as "an incantation, a mystical statement of belief in the masses or the people" (Broyles 1996, 125). Duke Ellington, after playing some of his pieces for a journalist, said, "That's the Negro's life ... Hear that chord! Dissonance is our way of life in America. We are something apart, yet an integral part" (Ellington 1963, 150). Lou Harrison described Carl Ruggles's counterpoint as "a community of singing lines, living a life of its own, . . . careful not to get ahead or behind in its rhythmic cooperation with the others" (Harrison 1946, 8). Rudhyar gave the subtitle "A New Principle of Musical and Social Organization" to his book Dissonant Harmony, writing, "Dissonant music is thus the music of true and spiritual Democracy; the music of universal brotherhoods; music of Free Souls, not of personalities. It abolishes tonalities, exactly as the real Buddhistic Reformation abolished castes into the Brotherhood of Monks; for Buddhism is nothing but spiritual Democracy" (Rudhyar 1928, 10–11).