Dorian Variations

There are 5,040 possible variations for each of the 462 heptatonic scales (or seven-note chords) possible in 12-tone music. The Harken Music system proves this mathematically using combinatorics to calculate every combination and permutation possible in 12-tone equal temperament. With the Harken Music system we can calculate there are 5,544 heptatonic combinations and 2,328,480 permutations. Can you play all 5,040 variations of a Dorian scale? The Harken can. Watch the video. Check out the demo at harkenmusic.com. It’s all free and open-source.

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