31edo: Difference between revisions

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In mode 16, the most closely-matched harmonics are the composite ones, 21 and 25. Of the other harmonics:

<ul><li>17 is sharp, like 13. In fact, the 17:13 ratio is matched within a tenth of a cent.</li><li>19 is also sharp, like 13 and 17. The 19:17 ratio is about one cent sharp.</li><li>23 is about as flat as 11. The chromatic semitone is about half a cent off from 23:22. 31edo could be considered a tuning of the 2.3.5.7.11.23 ~~subset~~, on which it is consistent.</li><li>27 is quite flat, as it's 3^3 and the error from the meantone fifths accumulates.</li><li>29 and 31 are both ''very'' sharp, and intervals involving them are unlikely to play any major role.</li></ul>

<ul><li>17 is sharp, like 13. In fact, the 17:13 ratio is matched within a tenth of a cent.</li><li>19 is also sharp, like 13 and 17. The 19:17 ratio is about one cent sharp. 31edo could be considered a tuning of the 2.3.5.7.13.17.19 subgroup, on which it is consistent. </li><li>23 is about as flat as 11. The chromatic semitone is about half a cent off from 23:22. 31edo could be considered a tuning of the 2.3.5.7.11.23 subgroup, on which it is consistent.</li><li>27 is quite flat, as it's 3^3 and the error from the meantone fifths accumulates.</li><li>29 and 31 are both ''very'' sharp, and intervals involving them are unlikely to play any major role.</li></ul>

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 In mode 16, the most closely-matched harmonics are the composite ones, 21 and 25. Of the other harmonics:
-<ul><li>17 is sharp, like 13. In fact, the 17:13 ratio is matched within a tenth of a cent.</li><li>19 is also sharp, like 13 and 17. The 19:17 ratio is about one cent sharp.</li><li>23 is about as flat as 11. The chromatic semitone is about half a cent off from 23:22. 31edo could be considered a tuning of the 2.3.5.7.11.23 subset, on which it is consistent.</li><li>27 is quite flat, as it's 3^3 and the error from the meantone fifths accumulates.</li><li>29 and 31 are both ''very'' sharp, and intervals involving them are unlikely to play any major role.</li></ul>
+<ul><li>17 is sharp, like 13. In fact, the 17:13 ratio is matched within a tenth of a cent.</li><li>19 is also sharp, like 13 and 17. The 19:17 ratio is about one cent sharp. 31edo could be considered a tuning of the 2.3.5.7.13.17.19 subgroup, on which it is consistent. </li><li>23 is about as flat as 11. The chromatic semitone is about half a cent off from 23:22. 31edo could be considered a tuning of the 2.3.5.7.11.23 subgroup, on which it is consistent.</li><li>27 is quite flat, as it's 3^3 and the error from the meantone fifths accumulates.</li><li>29 and 31 are both ''very'' sharp, and intervals involving them are unlikely to play any major role.</li></ul>
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