Porcupine/Chords: Difference between revisions
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Though we're used to thinking of 4:5:6 as the definitive "major chord", with all inversions coming from that, there is nothing definitive about calling these lists below "chord" or "inversion". That's just the way the generators came out. | Though we're used to thinking of 4:5:6 as the definitive "major chord", with all inversions coming from that, there is nothing definitive about calling these lists below "chord" or "inversion". That's just the way the generators came out. | ||
The '''bolded''' inversions are named using [[ups and downs]] as | The '''bolded''' inversions are named using [[ups and downs]] as described on the [[Pergen|pergens]] page. The pergen is (P8, P4/3) third-of-a-4th, #7 in the [http://tallkite.com/misc_files/notation%20guide%20for%20rank-2%20pergens.pdf notation guide for rank-2 pergens]. One up is -7 generators, octave-reduced. The generator is vM2 = 167¢ - c/3, where c = the amount in cents the tempered fifth exceeds 700¢. ^1 = 33¢ + 2.33c. The enharmonic interval is v<sup>3</sup>A1, thus ^<sup>3</sup>C = C#. | ||
{| class="wikitable" | |||
... < | |+Porcupine's genchain | ||
!Genspan | |||
!0 | |||
!1 | |||
!2 | |||
!3 | |||
!4 | |||
!5 | |||
!6 | |||
!7 | |||
!8 | |||
!9 | |||
!10 | |||
!11 | |||
!12 | |||
!13 | |||
!14 | |||
|- | |||
!Cents (22edo) | |||
|0 | |||
|164 | |||
|327 | |||
|491 | |||
|655 | |||
|818 | |||
|982 | |||
|1145 | |||
|109 | |||
|273 | |||
|436 | |||
|600 | |||
|764 | |||
|927 | |||
|1091 | |||
|- | |||
!Ratio | |||
|1/1 | |||
|10/9 | |||
11/10 | |||
|6/5 | |||
11/9 | |||
|4/3 | |||
|16/11 | |||
|8/5 | |||
|16/9 | |||
7/4 | |||
|14/25 | |||
160/81 | |||
|16/15 | |||
21/20 | |||
|7/6 | |||
|14/11 | |||
|7/5 | |||
|14/9 | |||
| | |||
|28/15 | |||
|- | |||
!Interval | |||
|'''P1''' | |||
|vM2 | |||
|^m3 | |||
|'''P4''' | |||
|v5 | |||
|^m6 | |||
|'''m7''' | |||
|v8 | |||
|^m2 | |||
|'''m3''' | |||
|v4 | |||
|^b5 | |||
|'''m6''' | |||
|vm7 | |||
|^d8 | |||
|- | |||
!Note | |||
(in C) | |||
|'''C''' | |||
|vD | |||
|^Eb | |||
|'''F''' | |||
|vG | |||
|^Ab | |||
|'''Bb''' | |||
|vC | |||
|^Db | |||
|'''Eb''' | |||
|vF | |||
|^Gb | |||
|'''Ab''' | |||
|vBb | |||
|^Cb | |||
|} | |||
'''''TODO: complete the tables''''' | |||
== Triads == | == Triads == | ||
| Line 29: | Line 121: | ||
| 1/1-12/11-20/11 | | 1/1-12/11-20/11 | ||
| 1/1-5/3-11/6 | | 1/1-5/3-11/6 | ||
|^ | |^mv9no5 | ||
|- | |- | ||
| 0-1-3 | | 0-1-3 | ||
| Line 75: | Line 167: | ||
| otonal | | otonal | ||
| 1/1-11/10-8/5 | | 1/1-11/10-8/5 | ||
| 1/1-16/11- | | '''1/1-16/11-9/5''' | ||
| 1/1-5/4-11/8 | | 1/1-5/4-11/8 | ||
| | |^7(v5)no3 | ||
|- | |- | ||
| 0-2-5 | | 0-2-5 | ||
| Line 115: | Line 207: | ||
| otonal | | otonal | ||
| 1/1-11/9-16/9 | | 1/1-11/9-16/9 | ||
| 1/1-16/11- | | 1/1-16/11-5/3 | ||
| 1/1-9/8-11/8 | | '''1/1-9/8-11/8''' | ||
| | |sus2(v5) | ||
|- | |- | ||
| 0-3-6 | | 0-3-6 | ||
| Line 131: | Line 223: | ||
| utonal | | utonal | ||
| 1/1-16/11-16/9 | | 1/1-16/11-16/9 | ||
| 1/1-11/9-11/8 | | '''1/1-11/9-11/8''' | ||
| 1/1-9/8- | | 1/1-9/8-5/3 | ||
| | |^m^4no5 | ||
|- | |- | ||
| 0-5-6 | | 0-5-6 | ||
| Line 147: | Line 239: | ||
| otonal | | otonal | ||
| 1/1-16/15-6/5 | | 1/1-16/15-6/5 | ||
| 1/1-9/8-15/8 | | '''1/1-9/8-15/8''' | ||
| 1/1-5/3-16/9 | | 1/1-5/3-16/9 | ||
| | |vM9no35 | ||
|- | |- | ||
| 0-3-8 | | 0-3-8 | ||
| Line 180: | Line 272: | ||
| 1/1-16/15-16/9 | | 1/1-16/15-16/9 | ||
| 1/1-5/3-15/8 | | 1/1-5/3-15/8 | ||
| 1/1-9/8-6/5 | | '''1/1-9/8-6/5''' | ||
| | |^m,9no5 | ||
|- | |- | ||
| 0-1-9 | | 0-1-9 | ||
| Line 523: | Line 615: | ||
| 1/1-11/10-6/5-9/5 | | 1/1-11/10-6/5-9/5 | ||
| 1/1-12/11-18/11-20/11 | | 1/1-12/11-18/11-20/11 | ||
| 1/1-3/2-5/3-11/6 | | '''1/1-3/2-5/3-11/6''' | ||
| | |v6^7no3 | ||
|- | |- | ||
| 0-1-2-4 | | 0-1-2-4 | ||
| Line 578: | Line 670: | ||
| '''1/1-6/5-3/2-9/5''' | | '''1/1-6/5-3/2-9/5''' | ||
| '''1/1-5/4-3/2-5/3''' | | '''1/1-5/4-3/2-5/3''' | ||
|v6 or ^m7 | |v6 <u>or</u> ^m7 | ||
|- | |- | ||
|0-2-4-5 | |0-2-4-5 | ||
|1-6/5-16/11-8/5 | |||
| | | | ||
| | |1-6/5-16/11-8/5 | ||
| | | | ||
| | | | ||