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| | The Augmented 15th Chord - An Unseen Gem in the History of Music Harmony - Enrique Ubieta (Site not responding. Last check: 2007-10-17) |
 | | Although the augmented-fifteenth chord should not be subject to any sort of alteration, it could, however, be reduced to seven or six of its eight notes by eliminating the fifth degree of one or both tetrads of the chord, respectively. |
 | | Therefore, this union consisting of both seventh chords could have been of great historical importance to music, considering it represented a genealogical relationship between an ancestor (the dominant major-seventh chord) and its analogous descendant (the secondary major-seventh chord), which has ever since habitually practiced its harmonic function over the first and fourth degrees of tonality. |
 | | Had this chord, however, stood out with this crowning overtone at the start of the 20th century, we would probably be pointing it out today as the first tertian chord of superimposed thirds to build onto its structure a representation of the microtonal gamut, without losing its impressionist harmonic features. |
| www.ubieta.com /15chord/augmented_15th_chord_article.htm (1215 words) |
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