44edo: Difference between revisions

Xenwolf (talk | contribs)
m +cat
Yourmusic Productions (talk | contribs)
Create prime error table
Line 1: Line 1:
== Theory ==
{| class="wikitable center-all"
! colspan="2" | <!-- empty cell -->
! prime 2
! prime 3
! prime 5
! prime 7
! prime 11
! prime 13
! prime 17
! prime 19
! prime 23
! prime 29
! prime 31
! prime 37
|-
! rowspan="2" | Error
! absolute (¢)
| 0
| +7.14
| -4.49
| +12.99
| -5.86
| -4.93
| +4.13
| +2.49
| -1.00
| +6.79
| +0.41
| +3.20
|-
! [[Relative error|relative]] (%)
| 0
| +26.16
| -16.48
| +47.64
| -21.49
| -18.06
| +15.16
| +9.12
| -3.67
| +24.88
| +1.54
| +11.74
|-
! colspan="2" | [[nearest edomapping]]
| 44
| 26
| 14
| 36
| 20
| 29
| 4
| 11
| 23
| 38
| 42
| 9
|}
Though commonly neglected, '''44edo''', the division of an octave into 44 steps 27.2727 [[Cent|cents]] wide, doubles a very natural tuning, [[22edo]], to which it adds the ratios of 13, 19, and 23. While not the most accurate 2.3.5.7.11 tuning, 22edo is certainly a relatively compact one, and it's a surprise that extending it in this way has been done rarely or not at all. The most practically useful of these additions is easily the 13th harmonic with its neutral intervals, but the 17th, 19th, and 23rd are not to be dismissed. In the 13-limit it supplies the optimal patent val for [[vigin]] temperament. The [[k*N_subgroups|2*44]] subgroup of 44edo is 2.9.5.21.11.13.17.19.23, on which 44 tempers out the same commas as the patent val for [[88edo]].
Though commonly neglected, '''44edo''', the division of an octave into 44 steps 27.2727 [[Cent|cents]] wide, doubles a very natural tuning, [[22edo]], to which it adds the ratios of 13, 19, and 23. While not the most accurate 2.3.5.7.11 tuning, 22edo is certainly a relatively compact one, and it's a surprise that extending it in this way has been done rarely or not at all. The most practically useful of these additions is easily the 13th harmonic with its neutral intervals, but the 17th, 19th, and 23rd are not to be dismissed. In the 13-limit it supplies the optimal patent val for [[vigin]] temperament. The [[k*N_subgroups|2*44]] subgroup of 44edo is 2.9.5.21.11.13.17.19.23, on which 44 tempers out the same commas as the patent val for [[88edo]].