239edo: Difference between revisions
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| Line 26: | Line 26: | ||
| {{monzo| 379 -239 }} | | {{monzo| 379 -239 }} | ||
| {{mapping| 239 379 }} | | {{mapping| 239 379 }} | ||
| | | −0.307 | ||
| 0.307 | | 0.307 | ||
| 6.12 | | 6.12 | ||
| Line 33: | Line 33: | ||
| {{monzo| 3 -18 11}}, {{monzo| 32 -7 -9 }} | | {{monzo| 3 -18 11}}, {{monzo| 32 -7 -9 }} | ||
| {{mapping| 239 379 555 }} | | {{mapping| 239 379 555 }} | ||
| | | −0.247 | ||
| 0.265 | | 0.265 | ||
| 5.27 | | 5.27 | ||
| Line 40: | Line 40: | ||
| 2401/2400, 5120/5103, 29360128/29296875 | | 2401/2400, 5120/5103, 29360128/29296875 | ||
| {{mapping| 239 379 555 671 }} | | {{mapping| 239 379 555 671 }} | ||
| | | −0.204 | ||
| 0.241 | | 0.241 | ||
| 4.80 | | 4.80 | ||
| Line 47: | Line 47: | ||
| 2401/2400, 3025/3024, 4000/3993, 5120/5103 | | 2401/2400, 3025/3024, 4000/3993, 5120/5103 | ||
| {{mapping| 239 379 555 671 827 }} | | {{mapping| 239 379 555 671 827 }} | ||
| | | −0.220 | ||
| 0.218 | | 0.218 | ||
| 4.34 | | 4.34 | ||
| Line 122: | Line 122: | ||
| [[Neptune]] (7-limit) | | [[Neptune]] (7-limit) | ||
|} | |} | ||
<nowiki />* [[Normal lists|Octave-reduced form]], reduced to the first half-octave, and [[Normal lists|minimal form]] in parentheses if | <nowiki />* [[Normal lists|Octave-reduced form]], reduced to the first half-octave, and [[Normal lists|minimal form]] in parentheses if distinct | ||
== Music == | == Music == | ||
; [[Francium]] | ; [[Francium]] | ||
* "thatyounglighthouseboi" from ''albumwithoutspaces'' (2024) | * "thatyounglighthouseboi" from ''albumwithoutspaces'' (2024) – [https://open.spotify.com/track/2dGpklZpWAYSRDHtjc3nDs Spotify] | [https://francium223.bandcamp.com/track/thatyounglighthouseboi Bandcamp] | [https://www.youtube.com/watch?v=nAdJncpsOlk YouTube] | ||
* "Bath And A Nice Dream" from ''You Are A...'' (2024) | * "Bath And A Nice Dream" from ''You Are A...'' (2024) – [https://open.spotify.com/track/3RJ77kQEsnkjfgjjUFk9DH Spotify] | [https://francium223.bandcamp.com/track/bath-and-a-nice-dream Bandcamp] | [https://www.youtube.com/watch?v=3eBYJM6cRPA YouTube] | ||
[[Category:Alphaquarter]] | [[Category:Alphaquarter]] | ||
Revision as of 19:21, 15 January 2025
| ← 238edo | 239edo | 240edo → |
Theory
239edo has a sharp tendency, with prime harmonics 3 through 11 all tuned sharp. The equal temperament tempers out 2401/2400, 5120/5103, and 29360128/29296875 in the 7-limit, supporting the hemififths temperament and providing an excellent tuning. It also supports and provides a good tuning for quasiorwell and alphaquarter. In the 11-limit, it tempers out 3025/3024, 4000/3993, 5632/5625, and 12005/11979.
Prime harmonics
| Harmonic | 2 | 3 | 5 | 7 | 11 | 13 | 17 | 19 | 23 | 29 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Error | Absolute (¢) | +0.00 | +0.97 | +0.30 | +0.21 | +0.98 | -2.03 | +0.48 | -1.28 | -0.66 | -0.29 | -0.27 |
| Relative (%) | +0.0 | +19.4 | +5.9 | +4.2 | +19.6 | -40.5 | +9.6 | -25.5 | -13.1 | -5.7 | -5.3 | |
| Steps (reduced) |
239 (0) |
379 (140) |
555 (77) |
671 (193) |
827 (110) |
884 (167) |
977 (21) |
1015 (59) |
1081 (125) |
1161 (205) |
1184 (228) | |
Subsets and supersets
239edo is the 52nd prime edo.
Regular temperament properties
| Subgroup | Comma list | Mapping | Optimal 8ve stretch (¢) |
Tuning error | |
|---|---|---|---|---|---|
| Absolute (¢) | Relative (%) | ||||
| 2.3 | [379 -239⟩ | [⟨239 379]] | −0.307 | 0.307 | 6.12 |
| 2.3.5 | [3 -18 11⟩, [32 -7 -9⟩ | [⟨239 379 555]] | −0.247 | 0.265 | 5.27 |
| 2.3.5.7 | 2401/2400, 5120/5103, 29360128/29296875 | [⟨239 379 555 671]] | −0.204 | 0.241 | 4.80 |
| 2.3.5.7.11 | 2401/2400, 3025/3024, 4000/3993, 5120/5103 | [⟨239 379 555 671 827]] | −0.220 | 0.218 | 4.34 |
Rank-2 temperaments
| Periods per 8ve |
Generator* | Cents* | Associated ratio* |
Temperaments |
|---|---|---|---|---|
| 1 | 3\239 | 15.06 | 121/120 | Yarman I (239) |
| 1 | 7\239 | 35.15 | 1990656/1953125 | Gammic (5-limit) |
| 1 | 9\239 | 45.19 | 250/243 | Quartonic (5-limit) |
| 1 | 11\239 | 55.23 | 33/32 | Escapade / alphaquarter |
| 1 | 35\239 | 175.73 | 72/65 | Quadrafifths (239f) |
| 1 | 54\239 | 271.13 | 90/77 | Quasiorwell (239) |
| 1 | 70\239 | 351.46 | 49/40 | Hemififths (7-limit) |
| 1 | 79\239 | 396.65 | 44/35 | Squarschmidt |
| 1 | 83\239 | 416.74 | 14/11 | Unthirds (239f) |
| 1 | 116\239 | 582.43 | 7/5 | Neptune (7-limit) |
* Octave-reduced form, reduced to the first half-octave, and minimal form in parentheses if distinct