Serialism is a rubric applied to diverse systems of composing music in which various elements of a piece are ordered according to a pre-determined set or sets of musical pitches (sometimes called "rows"), and variations on them. The elements thus controlled may be the pitch of the notes, their duration, their dynamics, their accents, or virtually any other musical parameter. More generally, Serialism refers to any music wherein ordered sets are applied to any musical element. (See also Tonality, Atonality)