Comma-based lattices: Difference between revisions
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The zero planes for ETs tempering out a particular comma form sheaves of planes radiating from that comma’s monzo vector. They appear as lines marking the intersection of their zero planes with the ''n''k = 1 plane, and fall into family groups including: | The zero planes for ETs tempering out a particular comma form sheaves of planes radiating from that comma’s monzo vector. They appear as lines marking the intersection of their zero planes with the ''n''k = 1 plane, and fall into family groups including: | ||
* meantone temperaments: horizontal lines | |||
* schismic temperaments: vertical lines | |||
* diaschismic temperaments: leading diagonals | |||
* aristoxenean temperaments: trailing diagonals | |||
* misty temperaments: lines with gradient -2 | |||
Other temperament families (such as kleismic) can be plotted as lines radiating from the tempered-out comma. Regular temperaments such as quarter-comma meantone can also be plotted, and the graphic has a number of other nice features. | |||
In a given prime limit there is an infinite number of comma basis sets to choose from, and any such set can be transformed in simple ways to generate others. For example, starting from the set described above, any comma in the ''n''k = 1 plane can substitute for the kleisma as the third basis comma. | In a given prime limit there is an infinite number of comma basis sets to choose from, and any such set can be transformed in simple ways to generate others. For example, starting from the set described above, any comma in the ''n''k = 1 plane can substitute for the kleisma as the third basis comma. | ||
Another basis set, [ |monzisma> |raider> |atom> ], turns up the magnification to focus on schismina-sized commas and the associated temperaments. | Another basis set, [ |monzisma> |raider> |atom> ], turns up the magnification to focus on schismina-sized commas and the associated temperaments. | ||
[[Category:31edo]] | [[Category:31edo]] | ||
[[Category: | [[Category:Comma]] | ||
[[Category: | [[Category:Lattice]] | ||
[[Category: | [[Category:What is]] | ||