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| | Day 5 - Math 290 |
 | | The twelve note sequence {5, 0, 7, 2, 9, 4, 11, 6, 1, 8, 3, 10}, translated to the common musical note system becomes {F, C, G, D, A, E, B, F#, C#, G#, D#, A#} and is known as the circle of fifths. |
 | | Hard to say, but since clashing of tones which do not form ratios of frequencies very close to natural tunings is inevitable, it should be a given that music performed in this system will sound harsher or more dissonant than music performed in the familar twelve tone system in common use. |
 | | By combining the twelve rotations with the two reflections--essentially reflection or no reflection--there are twenty-four different such 12-gons of notes, thus the term dihedral group of order twenty-four. |
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