. . . . . "Twelve-tone technique\u2014also known as dodecaphony, twelve-tone serialism, and (in British usage) twelve-note composition\u2014is a method of musical composition devised by Austrian composer Arnold Schoenberg (1874\u20131951). The technique is a means of ensuring that all 12 notes of the chromatic scale are sounded as often as one another in a piece of music while preventing the emphasis of any one note through the use of tone rows, orderings of the 12 pitch classes."@en .