Reduction (music)

Two-hand piano reduction of the "Lacrimosa" from Mozart's Requiem, arranged by Carl Czerny. play^ⓘ

Four-hand piano reduction of the "Lacrimosa" from Mozart's Requiem, arranged by Czerny. play^ⓘ

The Queen's Dolour (A Farewell) by Henry Purcell / Realised by Ronald Stevenson (1958)

Performed live by Mark Gasser

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Awake, the Voice Commands

Transcribed for piano by Ferruccio Busoni from the Schübler Chorales by Johann Sebastian Bach, performed by Martha Goldstein

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Prelude and Fugue in A minor, BWV 543

Franz Liszt's transcription of Prelude and Fugue in A minor, BWV 543 composed by Johann Sebastian Bach, performed by Raymond Smullyan

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In music, a reduction is an arrangement or transcription of an existing score or composition in which complexity is lessened to make analysis, performance, or practice easier or clearer; the number of parts may be reduced or rhythm may be simplified, such as through the use of block chords.