17/13: Difference between revisions
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{{Infobox Interval | {{Infobox Interval | ||
| Ratio = 17/13 | | Ratio = 17/13 | ||
| Monzo = 0 0 0 0 0 -1 1 | | Monzo = 0 0 0 0 0 -1 1 | ||
| Cents = 464.42775 | | Cents = 464.42775 | ||
| Name = septendecimal subfourth | | Name = septendecimal subfourth | ||
| Color name = | | Color name = 17o3u4, sothu 4th | ||
| FJS name = P4<sup>17</sup><sub>13</sub> | | FJS name = P4<sup>17</sup><sub>13</sub> | ||
| Sound = jid_17_13_pluck_adu_dr220.mp3 | | Sound = jid_17_13_pluck_adu_dr220.mp3 | ||
}} | }} | ||
In [[17-limit]] [[ | In [[17-limit]] [[just intonation]], '''17/13''' is the '''septendecimal subfourth''', measuring about 464.4¢. It differs from the [[4/3]] perfect fourth by the [[comma]] [[52/51]], about 33.6¢. It is the [[mediant]] between [[13/10]] and [[4/3]] and falls in the categorically-ambiguous zone between supermajor third and perfect fourth that Margo Schulter calls [[interseptimal]]. It appears in the [[harmonic series]] between the 13th and 17th harmonics. | ||
It is less than 0.2 cents flat of [[31edo]]'s subfourth of 464.52¢ (12\31). In fact, a circle of 31 pure 17/13's closes with an error of only 2.74c ([[relative error]] 7.1%). | It is less than 0.2 cents flat of [[31edo]]'s subfourth of 464.52¢ (12\31). In fact, a circle of 31 pure 17/13's closes with an error of only 2.74c ([[relative error]] 7.1%). | ||
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[[Category:17-limit]] | [[Category:17-limit]] | ||
[[Category:Fourth]] | [[Category:Fourth]] | ||
[[Category:Subfourth]] | [[Category:Subfourth]] | ||
[[Category:Interseptimal]] | [[Category:Interseptimal]] | ||
[[Category:Naiadic]] | [[Category:Naiadic]] | ||
[[Category:Taxicab-2]] | |||
[[Category:Pages with internal sound examples]] | [[Category:Pages with internal sound examples]] |