porchrome7

Seventh 25/24&250/243 scale = inverse porchrome6

Open in Scale Workshop Scala analysis Download scl

Properties

Notes	7
Period	1200.0 ¢
Just	5-limit
Source	Mailing lists
Reference	https://yahootuninggroupsultimatebackup.github.io/tuning-math/topicId_12727.html#12727
Thread	7 scales

Tone	Tone (¢)	Step	Step (¢)
27/25	133	27/25	133
5/4	386	125/108	253
27/20	520	27/25	133
3/2	702	10/9	182
5/3	884	10/9	182
9/5	1018	27/25	133
2	1200	10/9	182

Similar scales

File	Notes	Rotation	Max diff (¢)
prop19_7c	7	4	14.3
xen09-wilson-marwa-11b-03	7	6	21.5
xen09-wilson-marwa-12-03	7	6	21.5
xen09-wilson-marwa-16b-03	7	6	21.5
xen10-wilson-purvi-02a-05	7	0	21.5
xen10-wilson-purvi-09b-05	7	0	21.5
mavchrome5	7	4	21.5
xen10-wilson-purvi-07a-04	7	4	21.5
xen10-chalmers-tritriadic-19-21-23	7	3	24.3
xen12-chalmers-tritriadic-dm-21-23-19	7	2	24.3

Parent scales

File	Notes	Max diff (¢)
semipor4	8	0.0
majraj1	12	0.0
sensi19br1	19	3.4
xen18-erlich-flattone-12	12	12.4
meanred	12	13.8
parizek_7lqmtd2	12	13.8
sensisynch19	19	6.7
kleismic34trans	34	0.0
xen18-erlich-meantone-12	12	16.0
xen13-mclaren-infinite-continued-fraction-2	14	13.7

Child scales

File	Notes	Max diff (¢)
Vietnam_Vong_Co	5	18.4

Mailing list post

From: Gene Ward Smith (2005-09-29)
Subject: Porchrome: 25/24&250/243 5-limit 7-note Fokker blocks

! porchrome1.scl
First 25/24&250/243 scale = synchrome1 diff7 ptolemy_diat al_farabi_diat2
7
!
10/9
6/5
4/3
3/2
5/3
9/5
2

! porchrome2.scl
Second 25/24&250/243 scale = inverse porchrome3
7
!
27/25
6/5
25/18
3/2
5/3
9/5
2

! porchrome3.scl
Third 25/24&250/243 scale = inverse porchrome2
7
!
27/25
5/4
25/18
3/2
5/3
9/5
2

! porchrome4.scl
Fourth 25/24&250/243 scale = inverse porchrome5
7
!
10/9
5/4
25/18
3/2
5/3
9/5
2

! porchrome5.scl
Fifth 25/24&250/243 scale = inverse porchrome4
7
!
9/8
5/4
25/18
3/2
5/3
9/5
2

! porchrome6.scl
Sixth 25/24&250/243 scale = transposed liu_minor inverse porchrome7
7
!
10/9
6/5
25/18
3/2
5/3
9/5
2

! porchrome7.scl
Seventh 25/24&250/243 scale = inverse porchrome6
7
!
27/25
5/4
27/20
3/2
5/3
9/5
2

Full thread (1 messages)

From: Gene Ward Smith (2005-09-29)
Subject: Porchrome: 25/24&250/243 5-limit 7-note Fokker blocks

! porchrome1.scl
First 25/24&250/243 scale = synchrome1 diff7 ptolemy_diat al_farabi_diat2
7
!
10/9
6/5
4/3
3/2
5/3
9/5
2

! porchrome2.scl
Second 25/24&250/243 scale = inverse porchrome3
7
!
27/25
6/5
25/18
3/2
5/3
9/5
2

! porchrome3.scl
Third 25/24&250/243 scale = inverse porchrome2
7
!
27/25
5/4
25/18
3/2
5/3
9/5
2

! porchrome4.scl
Fourth 25/24&250/243 scale = inverse porchrome5
7
!
10/9
5/4
25/18
3/2
5/3
9/5
2

! porchrome5.scl
Fifth 25/24&250/243 scale = inverse porchrome4
7
!
9/8
5/4
25/18
3/2
5/3
9/5
2

! porchrome6.scl
Sixth 25/24&250/243 scale = transposed liu_minor inverse porchrome7
7
!
10/9
6/5
25/18
3/2
5/3
9/5
2

! porchrome7.scl
Seventh 25/24&250/243 scale = inverse porchrome6
7
!
27/25
5/4
27/20
3/2
5/3
9/5
2

Raw file

! porchrome7.scl
Seventh 25/24&250/243 scale = inverse porchrome6
7
!
27/25
5/4
27/20
3/2
5/3
9/5
2
!
! https://yahootuninggroupsultimatebackup.github.io/tuning-math/topicId_12727.html#12727
!
! [info]
! source = Mailing lists
! file = tuning-math/messages/yahoo_tuning-math_messages_api_raw_12430-15927.json
! topic_id = 12727
! msg_id = 12727