User:Moremajorthanmajor/20wtn: Difference between revisions
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[[Category:Well tempered nonet]] | [[Category:Well tempered nonet]] | ||
Latest revision as of 09:31, 1 September 2025
A 20 tone well tempered nonet (20WTN) is related to well temperaments of 17edo, but with a nonet rather than the 2/1 being constant. Its patent tunings optimally alternate division of the just perfect fifth into 10 equal parts (10EDF) with sequences of ten equal steps of 60 to 80 cents each. This will create ten equally-spaced intervals between an interval between 600 and 800 cents and the just perfect fifth.
Patent Intervals
| Target | Alternating edo and *ed(9/8) | |
|---|---|---|
| 1 | 70.1955 | 70.588 |
| 2 | 140.391 | 141.1765 |
| 3 | 210.5865 | 211.765 |
| 4 | 280.782 | 282.353 |
| 5 | 350.9775 | 352.941 |
| 6 | 421.173 | 423.529 |
| 7 | 491.3685 | 494.118 |
| 8 | 561.564 | 564.706 |
| 9 | 631.7595 | 635.294 |
| 10 | 701.955 | 705.882 |
| 11 | 773.104 | 776.471 |
| 12 | 844.254 | 847.059 |
| 13 | 915.403 | 917.647 |
| 14 | 986.552 | 988.235 |
| 15 | 1057.701 | 1058.8235 |
| 16 | 1128.896 | 1129.412 |
| 17 | 1200 | |
| 18 | 1271.149 | 1267.97 |
| 19 | 1342.299 | 1333.94 |
| 20 | 1413.448 | 1403.91 |