| Disminution |
| It consists in the treatment of a melody by shortening the time-values of notes, usaully by half, or more. |
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| Design |
| Melodic or rythmic design repeting a long of the piece. |
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| Dissonant |
| Sensation of inestability or roughness sonorus to ear simultaneous combination of two sounds. Dissonants intervals: All the 2nd and 7th, all the augmenteds and disminutions intervals and the 4th. |
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| Dot |
| A dot that is placed immediately after a note or rest lengthens the note or rest by half its value. |
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| Double bar-line |
| Two drawn across, the second more tickness that the first, it's indicate us the end of the piece. |
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| Dodecaphonic music |
| Composition's system that uses the twelve sounds of the chromatic scale its refuses the tonal system and its has other basis of compositions. |
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| Dominant |
| 5th degree of diathonic scale. |
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