Text: Enharmonic 1. In the 12-EQ scale, the capacity for two notes with different "spellings" and musical functions to be represented by the same actual degree of the scale. For example, in the 12-EQ tuning, C# and Db are enharmonically equivalent, i.e., the same note. This usage of enharmonic equivalence also occurs in other tunings. For an example, see the final graph in the "decimal" dictionary entry. See also enharmonicity 2. In ancient Greek theory, one of the three basic type of genus, with a characteristic interval of approximately a "major 3rd" at the top of the tetrachord, then 2 successive intervals of approximately a "quarter-tone" at the bottom, making up a 4/3 "perfect 4th". see also diatonic and chromatic 3. In several different medieval theories, a distinction was made between chromatic and diatonic semitones, as there were two different sizes of semitone in many tuning systems. Marchetto, however, specified three types of semitone and called the third, naturally enough, the enharmonic; however, his names were matched with the intervals differently than in traditional theory. see my paper on Marchetto [from Joe Monzo, JustMusic: A New Harmony] . . . . . . . . . . . See Enharmonion [from John Chalmers, Divisions of the Tetrachord]

See Also:

Source: