Polyharmony

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Polyharmony is the use of two or more harmonies against each other, common in 20th century music.[1] This originated form the ninth chords of Debussy (1-3-5-7-9), which suggested more than one key. Contemporary composers stack additional notes, suggesting even more contrasting keys.

[edit] References

  1. ^ Polyharmony. Virginia Tech. Retrieved on 2007-08-04.