Account for atonality and twelve-tone serialism, including free atonality, the tone row and its four transformations, and the move from pitch hierarchy to pre-compositional ordering

What this dot point is asking

SEAB wants you to account for atonality, music without a tonal centre, and for the twelve-tone (serial) method that gave atonal writing a system. The central insight is a historical and technical one: late-Romantic chromaticism strained the key until it broke (free atonality), and Schoenberg then replaced the lost tonal hierarchy with a pre-compositional ordering of the twelve pitches, the tone row, organised by four transformations. Your task is to explain how equal treatment of all twelve pitch classes abolishes the tonic and how the row supplies structure in its place.

The answer

The musical concept: atonality and the emancipation of the dissonance

Atonality is music with no tonic, no key and no functional harmony. Its precondition is the emancipation of the dissonance: in tonal music a dissonance is unstable and must resolve to a consonance, but in atonality that obligation is abolished, so every interval becomes equally usable structural material. The earliest atonal works are freely atonal: they avoid a key but use no fixed system, ordering pitches intuitively.

The technique: the twelve-tone row and its transformations

Schoenberg's twelve-tone method (dodecaphony, serialism) supplied a system. The composer fixes an ordering of all twelve chromatic pitch classes, the tone row (or series). Each of the twelve pitches is used once before any is repeated, so no pitch can dominate as a tonic. The row exists in four basic forms:

• Prime (P): the original ordering.
• Retrograde (R): the row backwards.
• Inversion (I): the intervals turned upside down (an upward third becomes a downward third).
• Retrograde-inversion (RI): the inversion played backwards.

Each form can begin on any of the twelve pitches (it can be transposed), giving up to forty-eight versions in total. In classical twelve-tone writing the row governs pitch only; rhythm, dynamics, register and timbre remain freely composed.

Why this dissolves the key

A key depends on a hierarchy in which one pitch (the tonic) is the centre of rest and others lean toward it. By using all twelve pitch classes equally and in a fixed order before any returns, serialism removes that hierarchy entirely; structure comes from the row and its transformations, not from tonal function.

Named repertoire

Arnold Schoenberg devised both free atonality and the method; his pupils Alban Berg (more lyrical and sometimes tonally allusive) and Anton Webern (concentrated and pointillistic) form the Second Viennese School.

Examples in context

Example 1. Arnold Schoenberg, the path to the method. Schoenberg moved from intensely chromatic late-Romantic writing through freely atonal expressionist works to the twelve-tone method, which he devised to give atonal music a coherent structural principle. His output is the clearest single illustration of all three stages and of the row and its transformations.

Example 2. Anton Webern, concentrated serial writing. Webern applied the method with extreme economy: spare, pointillistic textures in which single notes are spread across registers and instruments, and the row's symmetry shapes very short, tightly organised movements. He contrasts sharply with Berg's more lyrical, sometimes tonally allusive serialism.

Try this

Q1. Explain what is meant by the emancipation of the dissonance. [2 marks]

• Cue. Dissonance is freed from the requirement to resolve to consonance; in atonal music every interval becomes equally usable as structural material rather than unstable and needing release.

Q2. Name the four forms of a twelve-tone row. [2 marks]

• Cue. Prime (P), retrograde (R, backwards), inversion (I, intervals flipped) and retrograde-inversion (RI, the inversion backwards).

Q3. Explain how using all twelve pitch classes equally in a fixed order removes the sense of a key. [3 marks]

• Cue. A key needs a tonic that other pitches lean toward; using all twelve pitch classes once each before any repeats gives no pitch priority, so the hierarchy that creates a tonic is dissolved and order, not function, organises the music.