These two influenced him to write many works in the twelve-tone technique.
In the strictest of forms i.e., the twelve-tone form, she examines the human condition; the poetry is pitiless, yet redemptive.
These pieces were all built on an ordered twelve-tone row, with the actual order often determined by chance.
The composer engaged intensively with the latest tendencies in music, including twelve-tone music, atonality, serialism and aleatorics, but always rejected the straitjacket of dogmatism.
Its components may be fixed with regard to order, in which event it may be employed, like the twelve-tone set, in its literal transformations.
The second problem, an aesthetic one, was that of the emergence of 'the twelve-tone system' as a major and practically universal preoccupation of composers of the day.
In his last works he turned to the twelve-tone system.
In this light, the history of the twelve-tone technique, so often conveyed as essentially a question of style, can suddenly look, and maybe even sound, very different.
