41edo: Difference between revisions
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[[2460edo]] has potential for a 41edo analog to [[Cent|cents]]. It divides the 41edo step into 60 equal parts, and 60 is a highly composite (a.k.a. antiprime) number, so it contains many other multiples of 41edo, including 205edo, and also contains [[12edo]] among other equal tunings. It also accurately represents [[14afdo|mode 14 of the harmonic series]], as it is consistent all the way up to the 27-odd-limit. This allows for precise detunings in a 41-tone framework to approximate pure just intonation more closely, especially for some higher harmonics. Its step of 1\2460 is called a ''mina''. | [[2460edo]] has potential for a 41edo analog to [[Cent|cents]]. It divides the 41edo step into 60 equal parts, and 60 is a highly composite (a.k.a. antiprime) number, so it contains many other multiples of 41edo, including 205edo, and also contains [[12edo]] among other equal tunings. It also accurately represents [[14afdo|mode 14 of the harmonic series]], as it is consistent all the way up to the 27-odd-limit. This allows for precise detunings in a 41-tone framework to approximate pure just intonation more closely, especially for some higher harmonics. Its step of 1\2460 is called a ''mina''. | ||
See also [[countercomp family]] and [[41st-octave temperaments]] for temperaments that augment 41edo. | |||
== Intervals == | == Intervals == | ||
| Line 42: | Line 44: | ||
! Cents | ! Cents | ||
! Approximate ratios* | ! Approximate ratios* | ||
! [[Kite's ups and downs notation|Ups and downs notation]] | ! colspan="2" |[[Kite's ups and downs notation|Ups and downs notation]] | ||
([[Enharmonic unisons in ups and downs notation|EUs]]: v<sup>4</sup>A1 and ^d2) | |||
|- | |- | ||
| 0 | | 0 | ||
| 0.0 | | 0.0 | ||
| [[1/1]] | | [[1/1]] | ||
|P1 | |||
| {{UDnote|step=0}} | | {{UDnote|step=0}} | ||
|- | |- | ||
| Line 52: | Line 56: | ||
| 29.3 | | 29.3 | ||
| [[49/48]], [[50/49]], [[64/63]], [[81/80]] | | [[49/48]], [[50/49]], [[64/63]], [[81/80]] | ||
|^1 | |||
| {{UDnote|step=1}} | | {{UDnote|step=1}} | ||
|- | |- | ||
| Line 57: | Line 62: | ||
| 58.5 | | 58.5 | ||
| [[25/24]], [[28/27]], [[33/32]], [[36/35]] | | [[25/24]], [[28/27]], [[33/32]], [[36/35]] | ||
|^^1, vm2 | |||
| {{UDnote|step=2}} | | {{UDnote|step=2}} | ||
|- | |- | ||
| Line 62: | Line 68: | ||
| 87.8 | | 87.8 | ||
| [[19/18]], [[20/19]], [[21/20]], [[22/21]] | | [[19/18]], [[20/19]], [[21/20]], [[22/21]] | ||
|vA1, m2 | |||
| {{UDnote|step=3}} | | {{UDnote|step=3}} | ||
|- | |- | ||
| Line 67: | Line 74: | ||
| 117.1 | | 117.1 | ||
| [[14/13]], [[15/14]], [[16/15]] | | [[14/13]], [[15/14]], [[16/15]] | ||
|A1, ^m2 | |||
| {{UDnote|step=4}} | | {{UDnote|step=4}} | ||
|- | |- | ||
| Line 72: | Line 80: | ||
| 146.3 | | 146.3 | ||
| [[12/11]], [[13/12]] | | [[12/11]], [[13/12]] | ||
|~2 | |||
| {{UDnote|step=5}} | | {{UDnote|step=5}} | ||
|- | |- | ||
| Line 77: | Line 86: | ||
| 175.6 | | 175.6 | ||
| [[10/9]], [[11/10]], [[21/19]] | | [[10/9]], [[11/10]], [[21/19]] | ||
|vM2 | |||
| {{UDnote|step=6}} | | {{UDnote|step=6}} | ||
|- | |- | ||
| Line 82: | Line 92: | ||
| 204.9 | | 204.9 | ||
| [[9/8]] | | [[9/8]] | ||
|M2 | |||
| {{UDnote|step=7}} | | {{UDnote|step=7}} | ||
|- | |- | ||
| Line 87: | Line 98: | ||
| 234.1 | | 234.1 | ||
| [[8/7]], [[15/13]] | | [[8/7]], [[15/13]] | ||
|^M2 | |||
| {{UDnote|step=8}} | | {{UDnote|step=8}} | ||
|- | |- | ||
| Line 92: | Line 104: | ||
| 263.4 | | 263.4 | ||
| [[7/6]], [[22/19]] | | [[7/6]], [[22/19]] | ||
|vm3 | |||
| {{UDnote|step=9}} | | {{UDnote|step=9}} | ||
|- | |- | ||
| Line 97: | Line 110: | ||
| 292.7 | | 292.7 | ||
| [[13/11]], [[19/16]], [[32/27]] | | [[13/11]], [[19/16]], [[32/27]] | ||
|m3 | |||
| {{UDnote|step=10}} | | {{UDnote|step=10}} | ||
|- | |- | ||
| Line 102: | Line 116: | ||
| 322.0 | | 322.0 | ||
| [[6/5]] | | [[6/5]] | ||
|^m3 | |||
| {{UDnote|step=11}} | | {{UDnote|step=11}} | ||
|- | |- | ||
| Line 107: | Line 122: | ||
| 351.2 | | 351.2 | ||
| [[11/9]], [[16/13]] | | [[11/9]], [[16/13]] | ||
|~3 | |||
| {{UDnote|step=12}} | | {{UDnote|step=12}} | ||
|- | |- | ||
| Line 112: | Line 128: | ||
| 380.5 | | 380.5 | ||
| [[5/4]], [[26/21]] | | [[5/4]], [[26/21]] | ||
|vM3 | |||
| {{UDnote|step=13}} | | {{UDnote|step=13}} | ||
|- | |- | ||
| Line 117: | Line 134: | ||
| 409.8 | | 409.8 | ||
| [[14/11]], [[19/15]], [[24/19]] | | [[14/11]], [[19/15]], [[24/19]] | ||
|M3 | |||
| {{UDnote|step=14}} | | {{UDnote|step=14}} | ||
|- | |- | ||
| Line 122: | Line 140: | ||
| 439.0 | | 439.0 | ||
| [[9/7]], [[32/25]] | | [[9/7]], [[32/25]] | ||
|^M3 | |||
| {{UDnote|step=15}} | | {{UDnote|step=15}} | ||
|- | |- | ||
| Line 127: | Line 146: | ||
| 468.3 | | 468.3 | ||
| [[21/16]], [[13/10]] | | [[21/16]], [[13/10]] | ||
|v4 | |||
| {{UDnote|step=16}} | | {{UDnote|step=16}} | ||
|- | |- | ||
| Line 132: | Line 152: | ||
| 497.6 | | 497.6 | ||
| [[4/3]] | | [[4/3]] | ||
|P4 | |||
| {{UDnote|step=17}} | | {{UDnote|step=17}} | ||
|- | |- | ||
| Line 137: | Line 158: | ||
| 526.8 | | 526.8 | ||
| [[15/11]], [[19/14]], [[27/20]] | | [[15/11]], [[19/14]], [[27/20]] | ||
|^4 | |||
| {{UDnote|step=18}} | | {{UDnote|step=18}} | ||
|- | |- | ||
| Line 142: | Line 164: | ||
| 556.1 | | 556.1 | ||
| [[11/8]], [[18/13]], [[26/19]] | | [[11/8]], [[18/13]], [[26/19]] | ||
|~4, vd5 | |||
| {{UDnote|step=19}} | | {{UDnote|step=19}} | ||
|- | |- | ||
| Line 147: | Line 170: | ||
| 585.4 | | 585.4 | ||
| [[7/5]], [[45/32]] | | [[7/5]], [[45/32]] | ||
|vA4, d5 | |||
| {{UDnote|step=20}} | | {{UDnote|step=20}} | ||
|- | |- | ||
| Line 152: | Line 176: | ||
| 614.6 | | 614.6 | ||
| [[10/7]], [[64/45]] | | [[10/7]], [[64/45]] | ||
|A4, ^d5 | |||
| {{UDnote|step=21}} | | {{UDnote|step=21}} | ||
|- | |- | ||
| Line 157: | Line 182: | ||
| 643.9 | | 643.9 | ||
| [[13/9]], [[16/11]], [[19/13]] | | [[13/9]], [[16/11]], [[19/13]] | ||
|~5, ^A4 | |||
| {{UDnote|step=22}} | | {{UDnote|step=22}} | ||
|- | |- | ||
| Line 162: | Line 188: | ||
| 673.2 | | 673.2 | ||
| [[22/15]], [[28/19]], [[40/27]] | | [[22/15]], [[28/19]], [[40/27]] | ||
|v5 | |||
| {{UDnote|step=23}} | | {{UDnote|step=23}} | ||
|- | |- | ||
| Line 167: | Line 194: | ||
| 702.4 | | 702.4 | ||
| [[3/2]] | | [[3/2]] | ||
|P5 | |||
| {{UDnote|step=24}} | | {{UDnote|step=24}} | ||
|- | |- | ||
| Line 172: | Line 200: | ||
| 731.7 | | 731.7 | ||
| [[20/13]], [[32/21]] | | [[20/13]], [[32/21]] | ||
|^5 | |||
| {{UDnote|step=25}} | | {{UDnote|step=25}} | ||
|- | |- | ||
| Line 177: | Line 206: | ||
| 761.0 | | 761.0 | ||
| [[14/9]], [[25/16]] | | [[14/9]], [[25/16]] | ||
|vm6 | |||
| {{UDnote|step=26}} | | {{UDnote|step=26}} | ||
|- | |- | ||
| Line 182: | Line 212: | ||
| 790.2 | | 790.2 | ||
| [[11/7]], [[19/12]], [[30/19]] | | [[11/7]], [[19/12]], [[30/19]] | ||
|m6 | |||
| {{UDnote|step=27}} | | {{UDnote|step=27}} | ||
|- | |- | ||
| Line 187: | Line 218: | ||
| 819.5 | | 819.5 | ||
| [[8/5]], [[21/13]] | | [[8/5]], [[21/13]] | ||
|^m6 | |||
| {{UDnote|step=28}} | | {{UDnote|step=28}} | ||
|- | |- | ||
| Line 192: | Line 224: | ||
| 848.8 | | 848.8 | ||
| [[13/8]], [[18/11]] | | [[13/8]], [[18/11]] | ||
|~6 | |||
| {{UDnote|step=29}} | | {{UDnote|step=29}} | ||
|- | |- | ||
| Line 197: | Line 230: | ||
| 878.0 | | 878.0 | ||
| [[5/3]] | | [[5/3]] | ||
|vM6 | |||
| {{UDnote|step=30}} | | {{UDnote|step=30}} | ||
|- | |- | ||
| Line 202: | Line 236: | ||
| 907.3 | | 907.3 | ||
| [[22/13]], [[27/16]], [[32/19]] | | [[22/13]], [[27/16]], [[32/19]] | ||
|M6 | |||
| {{UDnote|step=31}} | | {{UDnote|step=31}} | ||
|- | |- | ||
| Line 207: | Line 242: | ||
| 936.6 | | 936.6 | ||
| [[12/7]], [[19/11]] | | [[12/7]], [[19/11]] | ||
|^M6 | |||
| {{UDnote|step=32}} | | {{UDnote|step=32}} | ||
|- | |- | ||
| Line 212: | Line 248: | ||
| 965.9 | | 965.9 | ||
| [[7/4]], [[26/15]] | | [[7/4]], [[26/15]] | ||
|vm7 | |||
| {{UDnote|step=33}} | | {{UDnote|step=33}} | ||
|- | |- | ||
| Line 217: | Line 254: | ||
| 995.1 | | 995.1 | ||
| [[16/9]] | | [[16/9]] | ||
|m7 | |||
| {{UDnote|step=34}} | | {{UDnote|step=34}} | ||
|- | |- | ||
| Line 222: | Line 260: | ||
| 1024.4 | | 1024.4 | ||
| [[9/5]], [[20/11]], [[38/21]] | | [[9/5]], [[20/11]], [[38/21]] | ||
|^m7 | |||
| {{UDnote|step=35}} | | {{UDnote|step=35}} | ||
|- | |- | ||
| Line 227: | Line 266: | ||
| 1053.7 | | 1053.7 | ||
| [[11/6]], [[24/13]] | | [[11/6]], [[24/13]] | ||
|~7 | |||
| {{UDnote|step=36}} | | {{UDnote|step=36}} | ||
|- | |- | ||
| Line 232: | Line 272: | ||
| 1082.9 | | 1082.9 | ||
| [[13/7]], [[15/8]], [[28/15]] | | [[13/7]], [[15/8]], [[28/15]] | ||
|vM7 | |||
| {{UDnote|step=37}} | | {{UDnote|step=37}} | ||
|- | |- | ||
| Line 237: | Line 278: | ||
| 1112.2 | | 1112.2 | ||
| [[19/10]], [[21/11]], [[36/19]], [[40/21]] | | [[19/10]], [[21/11]], [[36/19]], [[40/21]] | ||
|M7 | |||
| {{UDnote|step=38}} | | {{UDnote|step=38}} | ||
|- | |- | ||
| Line 242: | Line 284: | ||
| 1141.5 | | 1141.5 | ||
| [[27/14]], [[35/18]], [[48/25]], [[64/33]] | | [[27/14]], [[35/18]], [[48/25]], [[64/33]] | ||
|^M7 | |||
| {{UDnote|step=39}} | | {{UDnote|step=39}} | ||
|- | |- | ||
| Line 247: | Line 290: | ||
| 1170.7 | | 1170.7 | ||
| [[49/25]], [[63/32]], [[96/49]], [[160/81]] | | [[49/25]], [[63/32]], [[96/49]], [[160/81]] | ||
|v8 | |||
| {{UDnote|step=40}} | | {{UDnote|step=40}} | ||
|- | |- | ||
| Line 252: | Line 296: | ||
| 1200.0 | | 1200.0 | ||
| [[2/1]] | | [[2/1]] | ||
|P8 | |||
| {{UDnote|step=41}} | | {{UDnote|step=41}} | ||
|} | |} | ||
| Line 2,240: | Line 2,285: | ||
[[File:Caleb's Kite guitar.jpg|none|thumb|200px|Kite guitar]] | [[File:Caleb's Kite guitar.jpg|none|thumb|200px|Kite guitar]] | ||
For more photos of Kite guitars, see [[Kite Guitar Photographs]]. | There exist Kite-fretted basses, Kite-fretted Chapman sticks, and a Kite-fretted cuatro. For more photos of Kite guitars, see [[Kite Guitar Photographs]]. | ||
{{clear}} | {{clear}} | ||
=== Other string instruments === | |||
The Turkish [[wikipedia:Lavta|lavta]] is a lute-like instrument with movable frets. The strings are tuned D A D A or D A D G. The frets are mostly placed in clumps of 5, so that there are 5 seconds, 5 thirds, etc. The lavta is arguably fretted to a 27-note subset of 41edo. Each clump would correspond to 41edo's plainminor-upminor-mid-downmajor-plainmajor. The edosteps would be something like 0, 3-7, 10-14, 17, 20-24, 27-31, 34-38 and 41. | |||
https://www.facebook.com/groups/497105067092502/permalink/3562297780573200/ | |||
=== Metallophones === | === Metallophones === | ||