Cv scales: Difference between revisions
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I found two scales I've found before, "pris" and "hen12". The latter is an adjusted version of the Hahn reduction of a chain of fifths. | I found two scales I've found before, "pris" and "hen12". The latter is an adjusted version of the Hahn reduction of a chain of fifths. | ||
<pre> | |||
! cv1.scl | ! cv1.scl | ||
First 12/5 <12 19 28 34| epimorphic | First 12/5 <12 19 28 34| epimorphic | ||
12 | 12 | ||
! | ! | ||
16/15 | 16/15 | ||
8/7 | 8/7 | ||
7/6 | 7/6 | ||
5/4 | 5/4 | ||
4/3 | 4/3 | ||
7/5 | 7/5 | ||
3/2 | 3/2 | ||
8/5 | 8/5 | ||
5/3 | 5/3 | ||
7/4 | 7/4 | ||
28/15 | 28/15 | ||
2/1 | |||
</pre> | |||
<pre> | |||
! cv3.scl | ! cv3.scl | ||
Third 12/5 scale <12 19 28 34| epimorphic = pris | Third 12/5 scale <12 19 28 34| epimorphic = pris | ||
12 | 12 | ||
! | ! | ||
16/15 | 16/15 | ||
28/25 | 28/25 | ||
7/6 | 7/6 | ||
5/4 | 5/4 | ||
4/3 | 4/3 | ||
7/5 | 7/5 | ||
3/2 | 3/2 | ||
8/5 | 8/5 | ||
5/3 | 5/3 | ||
7/4 | 7/4 | ||
28/15 | 28/15 | ||
2/1 | |||
</pre> | |||
<pre> | |||
! cv5.scl | ! cv5.scl | ||
Fifth 12/5 scale <12 19 28 34| epimorphic = inverse hen12 | Fifth 12/5 scale <12 19 28 34| epimorphic = inverse hen12 | ||
12 | 12 | ||
! | ! | ||
15/14 | 15/14 | ||
9/8 | 9/8 | ||
6/5 | 6/5 | ||
5/4 | 5/4 | ||
21/16 | 21/16 | ||
7/5 | 7/5 | ||
3/2 | 3/2 | ||
8/5 | 8/5 | ||
12/7 | 12/7 | ||
7/4 | 7/4 | ||
15/8 | 15/8 | ||
2 | 2 | ||
</pre> | |||
<pre> | |||
! cv7.scl | ! cv7.scl | ||
Seventh 12/5 scale <12 19 28 34| epimorphic | Seventh 12/5 scale <12 19 28 34| epimorphic | ||
12 | 12 | ||
! | ! | ||
21/20 | 21/20 | ||
9/8 | 9/8 | ||
6/5 | 6/5 | ||
9/7 | 9/7 | ||
21/16 | 21/16 | ||
7/5 | 7/5 | ||
3/2 | 3/2 | ||
8/5 | 8/5 | ||
12/7 | 12/7 | ||
9/5 | 9/5 | ||
15/8 | 15/8 | ||
2/1 | |||
</pre> | |||
<pre> | |||
! cv9.scl | ! cv9.scl | ||
Ninth 12/5 scale <12 19 28 34| epimorphic | Ninth 12/5 scale <12 19 28 34| epimorphic | ||
12 | 12 | ||
! | ! | ||
15/14 | 15/14 | ||
8/7 | 8/7 | ||
7/6 | 7/6 | ||
5/4 | 5/4 | ||
4/3 | 4/3 | ||
10/7 | 10/7 | ||
32/21 | 32/21 | ||
8/5 | 8/5 | ||
5/3 | 5/3 | ||
25/14 | 25/14 | ||
40/21 | 40/21 | ||
2/1 | |||
</pre> | |||
<pre> | |||
! cv11.scl | ! cv11.scl | ||
Eleventh 12/5 scale <12 19 28 34| epimorphic | Eleventh 12/5 scale <12 19 28 34| epimorphic | ||
12 | 12 | ||
! | ! | ||
15/14 | 15/14 | ||
9/8 | 9/8 | ||
6/5 | 6/5 | ||
9/7 | 9/7 | ||
21/16 | 21/16 | ||
7/5 | 7/5 | ||
3/2 | 3/2 | ||
8/5 | 8/5 | ||
12/7 | 12/7 | ||
9/5 | 9/5 | ||
15/8 | 15/8 | ||
2/1 | |||
</pre> | |||
<pre> | |||
! cv13.scl | ! cv13.scl | ||
Thirteenth 12/5 scale <12 19 28 34| epimorphic | Thirteenth 12/5 scale <12 19 28 34| epimorphic | ||
12 | 12 | ||
! | ! | ||
16/15 | 16/15 | ||
28/25 | 28/25 | ||
6/5 | 6/5 | ||
5/4 | 5/4 | ||
4/3 | 4/3 | ||
7/5 | 7/5 | ||
3/2 | 3/2 | ||
8/5 | 8/5 | ||
12/7 | 12/7 | ||
7/4 | 7/4 | ||
28/15 | 28/15 | ||
2/1 | |||
</pre> | |||
[[Category:Lists of scales]] | [[Category:Lists of scales]] | ||
[[Category:Pages with Scala files]] | [[Category:Pages with Scala files]] | ||
[[Category:Todo:cleanup]] | [[Category:Todo:cleanup]] |
Revision as of 07:47, 26 April 2023
From http://tech.groups.yahoo.com/group/tuning-math/message/11451
It turns out there are a lot of five tetrad scales involving only 11 notes (I've got a list of 132 of them) but none I've found are strictly epimorphic. Checking for permutation epimorphic scales may be a good plan.
Of course, there are even more five tetrad scales with 12 notes, but here I give only ones which are epimorphic--all, as it turns out, with the standard val. I cataloged these in pairs, where the odd numbers have three major and two minor tetrads, and the even pairs the reverse. Marvel tempering removes this distinction, and I only list the odd, with the three major tetrads.
I found two scales I've found before, "pris" and "hen12". The latter is an adjusted version of the Hahn reduction of a chain of fifths.
! cv1.scl First 12/5 <12 19 28 34| epimorphic 12 ! 16/15 8/7 7/6 5/4 4/3 7/5 3/2 8/5 5/3 7/4 28/15 2/1
! cv3.scl Third 12/5 scale <12 19 28 34| epimorphic = pris 12 ! 16/15 28/25 7/6 5/4 4/3 7/5 3/2 8/5 5/3 7/4 28/15 2/1
! cv5.scl Fifth 12/5 scale <12 19 28 34| epimorphic = inverse hen12 12 ! 15/14 9/8 6/5 5/4 21/16 7/5 3/2 8/5 12/7 7/4 15/8 2
! cv7.scl Seventh 12/5 scale <12 19 28 34| epimorphic 12 ! 21/20 9/8 6/5 9/7 21/16 7/5 3/2 8/5 12/7 9/5 15/8 2/1
! cv9.scl Ninth 12/5 scale <12 19 28 34| epimorphic 12 ! 15/14 8/7 7/6 5/4 4/3 10/7 32/21 8/5 5/3 25/14 40/21 2/1
! cv11.scl Eleventh 12/5 scale <12 19 28 34| epimorphic 12 ! 15/14 9/8 6/5 9/7 21/16 7/5 3/2 8/5 12/7 9/5 15/8 2/1
! cv13.scl Thirteenth 12/5 scale <12 19 28 34| epimorphic 12 ! 16/15 28/25 6/5 5/4 4/3 7/5 3/2 8/5 12/7 7/4 28/15 2/1