1216/1215: Difference between revisions
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'''1216/1215''', the '''password comma''' or '''Eratosthenes' comma''' is a [[19-limit]] unnoticeable comma. It is the difference between [[19/15]] and [[81/64]], [[19/18]] and [[135/128]], or [[20/19]] and [[256/243]]. | '''1216/1215''', the '''password comma''' or '''Eratosthenes' comma''' is a [[19-limit]] (also 2.3.5.19 subgroup) unnoticeable comma. It is the difference between [[19/15]] and [[81/64]], [[19/18]] and [[135/128]], or [[20/19]] and [[256/243]]. | ||
It is tempered out in edos including {{EDOs| 12, 29, 41, 53, 65, 77, 87, 94, 99, 106, 111, 118, 130, 140, 152, 159, 183, 193, 205, 217, 270, 282, 311, 323, 364, 400, 422, 581, and 692}}. | It is tempered out in edos including {{EDOs| 12, 29, 41, 53, 65, 77, 87, 94, 99, 106, 111, 118, 130, 140, 152, 159, 183, 193, 205, 217, 270, 282, 311, 323, 364, 400, 422, 581, and 692}}. | ||
Revision as of 10:43, 5 February 2021
| Interval information |
Eratosthenes' comma
reduced
1216/1215, the password comma or Eratosthenes' comma is a 19-limit (also 2.3.5.19 subgroup) unnoticeable comma. It is the difference between 19/15 and 81/64, 19/18 and 135/128, or 20/19 and 256/243.
It is tempered out in edos including 12, 29, 41, 53, 65, 77, 87, 94, 99, 106, 111, 118, 130, 140, 152, 159, 183, 193, 205, 217, 270, 282, 311, 323, 364, 400, 422, 581, and 692.