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| note equivalent to one fourth of a whole note |
| tone on the third degree from a given tone counted as the first |
| diatonic (ˌdaɪəˈtɒnɪk) | |
| —adj | |
| 1. | Compare chromatic of, relating to, or based upon any scale of five tones and two semitones produced by playing the white keys of a keyboard instrument, esp the natural major or minor scales forming the basis of the key system in Western music |
| 2. | not involving the sharpening or flattening of the notes of the major or minor scale nor the use of such notes as modified by accidentals |
| [C16: from Late Latin diatonicus, from Greek diatonikos, from diatonos extending, from diateinein to stretch out, from | |
| dia'tonically | |
| —adv | |
| diatonicism | |
| —n | |
diatonic
in music, any stepwise arrangement of the seven "natural" pitches (scale degrees) forming an octave without altering the established pattern of a key or mode-in particular, the major and natural minor scales. Some scales, including pentatonic and whole-tone scales, are not diatonic because they do not include the seven degrees.
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