phillips19_1

Pauline Phillips 5 cent margin optimized

Properties

Notes19
Period1200.0 ¢
JustNo
Source Mailing lists
Referencehttps://yahootuninggroupsultimatebackup.github.io/tuning/topicId_40185.html#40185
Thread2 scales
Tone (¢) Step (¢)
84 84
152 68
199 48
269 69
384 115
401 17
468 67
500 33
584 84
668 84
700 32
768 69
852 84
900 47
968 68
1084 116
1103 19
1168 65
1200 32

Similar scales

FileNotesRotationMax diff (¢)
phillips19_3 19 0 1.6
phillips19 19 0 3.1
quasi-phillips 19 0 15.9
xen07-chalmers-rvf-3 19 2 16.7
xen07-chalmers-fifth-comma 19 2 24.0
xen13-grady-19-1 19 11 24.8
xen07-chalmers-rvf-2 19 2 24.9

Parent scales

FileNotesMax diff (¢)
phillips 22 7.7
compton48 48 2.9
41cosine 41 7.6
Tolerant-Secor-29 29 14.1
edo-41 41 9.3
valamute 31 13.5
secor29tolerant 29 14.6
septenarian29 29 14.7
breezb 27 16.1
xen18-erlich-garibaldi-41 41 10.1

Child scales

FileNotesMax diff (¢)
phillips_tuning_39746_39990 12 0.7
Ghana_Tomora_Ba 7 1.2
keen6 5 1.7
xen03-wilson-acute-05 5 2.2
xen07-harrison-thoughts-5 5 2.2
lumma_wauchope-major 8 4.2
xen12-wilson-09-4C2-hexany-02 6 4.2
xen09-chalmers-tritriadic-10-14-15 7 4.5
xen09-chalmers-tritriadic-3-7-9 7 4.5
xen09-chalmers-tritriadic-6-7-9 7 4.5
Mailing list post
From: Gene Ward Smith (2002-10-26)
Subject: Least squares optimized Phillips scales

I did a least-squares fit to 7-limit intervals within 5 cents and 2.5 cents, and the results were revelatory.

! phillips19_1.scl
!
Pauline Phillips 5 cent margin optimized
19
!
84.3139369
151.8583699
199.4177206
268.7134087
383.8258631
400.9748406
467.6441078
500.2450361
584.1379555
668.1811654
699.7491415
768.3582599
852.4717660
899.7040367
967.8513128
1084.072482
1102.929842
1167.567841
2/1

6 major and 5 minor tetrads, 9 major and 7 minor triads, all within an error of 3 cents.

! phillips19_3.scl
!
Pauline Phillips 2.5 cent margin optimized
19
!
84.3723294
153.1326370
199.4516985
268.4554748
384.0592956
400.9792756
467.9551626
500.1311909
583.9525259
668.1674854
699.8776326
768.0935174
854.1073992
899.6726293
968.0465972
1084.139777
1102.934277
1167.481701
2/1

One less minor tetrad, and the error is not much smaller; I think the first version may be what Pauline was shooting for.
Full thread (4 messages)
From: Gene Ward Smith (2002-10-26)
Subject: Least squares optimized Phillips scales

I did a least-squares fit to 7-limit intervals within 5 cents and 2.5 cents, and the results were revelatory.

! phillips19_1.scl
!
Pauline Phillips 5 cent margin optimized
19
!
84.3139369
151.8583699
199.4177206
268.7134087
383.8258631
400.9748406
467.6441078
500.2450361
584.1379555
668.1811654
699.7491415
768.3582599
852.4717660
899.7040367
967.8513128
1084.072482
1102.929842
1167.567841
2/1

6 major and 5 minor tetrads, 9 major and 7 minor triads, all within an error of 3 cents.

! phillips19_3.scl
!
Pauline Phillips 2.5 cent margin optimized
19
!
84.3723294
153.1326370
199.4516985
268.4554748
384.0592956
400.9792756
467.9551626
500.1311909
583.9525259
668.1674854
699.8776326
768.0935174
854.1073992
899.6726293
968.0465972
1084.139777
1102.934277
1167.481701
2/1

One less minor tetrad, and the error is not much smaller; I think the first version may be what Pauline was shooting for.
From: prophecyspirit@aol.com (2002-10-26)
Subject: Re: [tuning] Least squares optimized Phillips scales

In a message dated 10/26/02 8:05:33 AM Central Daylight Time, 
genewardsmith@juno.com writes:


> I think the first version may be what Pauline was shooting for. 
> 
When I invented my scales, I was seeking to play in JI music already composed 
for tempered scales with 12 keyboard notes per octave. And do so with the 
least extra notes anad keys above 12. I found 19 noes to the octave would do 
this when slightly tempered. 

Some of the results were free extras. Such as being to play in C major, 7c 
minor and tertian e minor with the same tuning. And having several secondary 
scales related to these with the same tuning.

Pauline
From: Carl Lumma (2002-10-27)
Subject: Re: Least squares optimized Phillips scales

[Gene wrote...]
>I did a least-squares fit to 7-limit intervals within 5 cents
>and 2.5 cents, and the results were revelatory.

Least-squares fit from what starting scale?  How were they
relevatory?

-Carl
From: Gene Ward Smith (2002-10-27)
Subject: Re: Least squares optimized Phillips scales

--- In tuning@y..., "Carl Lumma" <clumma@y...> wrote:
> [Gene wrote...]
> >I did a least-squares fit to 7-limit intervals within 5 cents
> >and 2.5 cents, and the results were revelatory.
> 
> Least-squares fit from what starting scale?  How were they
> relevatory?

I adjusted the Phillips scale to the 7-limit consonant intervals in included with a margin of 5 cents, and then of 2.5 cents, and it showed the errors needn't be as great, and suggested how the 5-limit substructure looked.

Raw file

! phillips19_1.scl
!
Pauline Phillips 5 cent margin optimized
19
!
84.3139369
151.8583699
199.4177206
268.7134087
383.8258631
400.9748406
467.6441078
500.2450361
584.1379555
668.1811654
699.7491415
768.3582599
852.4717660
899.7040367
967.8513128
1084.072482
1102.929842
1167.567841
2/1
!
! https://yahootuninggroupsultimatebackup.github.io/tuning/topicId_40185.html#40185
!
! [info]
! source = Mailing lists
! file = tuning/messages/yahoo_tuning_messages_api_raw_40000-49986.json
! topic_id = 40185
! msg_id = 40185