108:135:160:192: Difference between revisions
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'''108:135:160:192''' is a [[dominant seventh chord]] found on the dominant scale degree (3⁄2 or V) of a diatonic scale with the second degree tuned a comma lower than in [[Zarlino]] (10⁄9 instead of 9⁄8), such as in left-handed [[nicetone]]. It combines a [[5/4]] major third with a [[16/9]] Pythagorean minor seventh, creating a [[64/45]] tritone between the two. | '''108:135:160:192''' is a [[dominant seventh chord]] found on the dominant scale degree (3⁄2 or V) of a diatonic scale with the second degree tuned a comma lower than in [[Zarlino]] (10⁄9 instead of 9⁄8), such as in left-handed [[nicetone]]. It combines a [[5/4]] major third with a [[16/9]] Pythagorean minor seventh, creating a [[64/45]] tritone between the two. | ||
Since it contains a [[40/27]] ''grave fifth'' instead of a [[3/2]] ''perfect fifth'', this chord has more dissonance than would be present in the closely-related | Since it contains a [[40/27]] ''grave fifth'' instead of a [[3/2]] ''perfect fifth'', this chord has more dissonance than would be present in the closely-related Ptolemaic dominant seventh chord ([[36:45:54:64]]). | ||
[[Category:Dominant seventh chords]] | [[Category:Dominant seventh chords]] | ||