(in music) diatonic functionalitySee also: function and functional. Diatonic functionality in music, is the assumption used in tonal music theory that pitches may only be used in their recognized roles. This includes the assumption that a pitch or pitch class and its enharmonic equivalen
(in mathematics) functionalGenerally, functional refers to something with and able to fulfill its purpose or function. In medicine, the term functional is sometimes used to describe symptoms that have no organic basis, e. if they are a result of psychological or perceptual dysfunct
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