We noticed in the last Just Intonation Post that we encounter 2 different perfect fifths: between C to G, E to B and G to D are all the Pythagorean ratio of 3:2, but the perfect fifth from D to A is 40:27, or one syntonic comma flatter than 3:2. This leads to some problems with basic harmony. If we only consider I, IV and V, everything works out fine, but as soon as we add some more interesting chords to the mix, namely ii, iii and vi minor triads, we encounter a phenomenon known as drift.
Showing posts with label syntonic comma. Show all posts
Showing posts with label syntonic comma. Show all posts
Monday, March 10, 2014
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