Pinetone: Difference between revisions

Lhearne (talk | contribs)
Lhearne (talk | contribs)
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33.3391 142.6653 176.0044 209.3435 318.6697 352.0088 461.335 494.6741 528.0132 637.3394 704.0176 737.3567 846.6829 880.022 913.3611 1022.6873 1056.0264 1165.3526 1198.6917.
33.3391 142.6653 176.0044 209.3435 318.6697 352.0088 461.335 494.6741 528.0132 637.3394 704.0176 737.3567 846.6829 880.022 913.3611 1022.6873 1056.0264 1165.3526 1198.6917.
The porcutone hyperchromatic scales may alternatively be tuned to 27edo, 34edo, or 41edo:
27edo: 7L 1m 11s = (2, 2, 1) = (88.8889c, 88.8889c, 44.4444c)
34edo: 7L 1m 11s = (3, 2, 1) = (105.8824c, 70.5882c, 35.2941c)
41edo: 7L 1m 11s = (4, 2, 1) = (117.0732c, 58.5366c, 29.2683c).
== Comma pump ==
== Comma pump ==
We can't use our circle of fifths (Meantone comma pump) or our Porcupine comma pumps here, as both 81/80 and 250/243 are observed. In the ptolemismic tuning we temper out 100/99 which we can can pump with chord progressions such as  
We can't use our circle of fifths (Meantone comma pump) or our Porcupine comma pumps here, as both 81/80 and 250/243 are observed. In the ptolemismic tuning we temper out 100/99 which we can can pump with chord progressions such as