User:Pailiaq/Tritone substitution: Difference between revisions
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The effectiveness of tritone substitution stems from voice leading. In a V7–I resolution in 12-EDO: | The effectiveness of tritone substitution stems from voice leading. In a V7–I resolution in 12-EDO: | ||
* The '''third''' of the dominant (the leading tone, | * The '''third''' of the dominant (the leading tone, 1100¢ above the dominant root) resolves up by semitone (100¢) to the tonic | ||
* The '''seventh''' of the dominant ( | * The '''seventh''' of the dominant (500¢ above the root, or 1000¢ above the tonic) resolves down by semitone to the third of the tonic | ||
These two active tones are exactly 600¢, a tritone, apart. When the dominant root is transposed by a tritone, (placed at 100¢) these tones swap positions: what was the third becomes the seventh, and vice versa. | These two active tones are exactly 600¢, a tritone, apart. When the dominant root is transposed by a tritone, (placed at 100¢) these tones swap positions: what was the third becomes the seventh, and vice versa. | ||