"twelve-tone music"^^ . "12-tone system"@en-us . "0"^^ . "a type of serial music introduced by Arnold Schoenberg; uses a tone row formed by the twelve semitones of the chromatic scale (and inverted or backward versions of the row)"@en-us . . . "07057539-n"^^ . "twelve-tone music"@en-us . . . "twelve-tone system"@en-us . . . . . . "0"^^ . . . . "12-tone music"@en-us . "107057539"^^ . . "106624824"@en-us .