In music, pandiatonicism refers to the technique of using the diatonic (as opposed to the chromatic) scale without the limitations of functional tonality. Pandiatonic music typically uses the notes of the diatonic scale freely in dissonant combinations without conventional resolutions and/or without standard chord progressions, sometimes to the extent that no single pitch is felt as a tonic. Pandiatonicism is also referred to as "white-note music", though in fact occasional accidentals may be present. Triads with added dissonances, such as a second or sixth (added tone chords), are typical. The term pandiatonicism was coined by the musicologist Nicolas Slonimsky to describe the nonfunctional tonality of composers such as Igor Stravinsky (in his Russian and neoclassical periods) and Aaron Copland (in his populist works; Jaffe, 1992). Pandiatonicism is particularly associated with Stravinsky and composers influenced by him; it was also used more recently by composers such as Arvo Pärt, Steve Reich, Eric Whitacre and John Adams.
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The following musical works include pandiatonicism.