In music, a transformation consists of any operation or process that may apply to a musical variable (usually a set or tone row in twelve tone music, or a melody or chord progression in tonal music) in composition, performance, or analysis. Transformations include multiplication, rotation, permutation (i.e. transposition, inversion, and retrograde), and combinations thereof.
- Schuijer, Michiel (2008). Analyzing Atonal Music, p.52-54. ISBN 978-1-58046-270-9.
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