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[http://launch.groups.yahoo.com/group/tuning/message/72704 Original article] by ma1937, on the Yahoo tuning forum, is quoted here.
[http://launch.groups.yahoo.com/group/tuning/message/72704 Original article] by ma1937, on the Yahoo tuning forum, is quoted here.


The listing of the srutis of Indian classical music given below is based on decades of study of the srutis, study with several masters of Indian classical music, pitch analysis of recordings by several masters of raga performance, and the following quote by Ali Akbar Khan:
The listing of the srutis of Indian classical music given below is based on decades of study of the srutis, study with several masters of Indian classical music, pitch analysis of recordings by several masters of raga performance, and the following quote by Ali Akbar Khan:<blockquote>"I am still learning about the srutis. They reach to your heart and help you feel the ragas and the notes. In old theory, they say that there are twenty-two in number, but right now I feel that there are more like twenty-three and a half. There is only one sa and one pa. Komal re, komal ga, and komal dha all have three. Shuddha ma, tivra ma, shuddha dha, and komal ni each have two. And shuddha re, shuddha ga, and shuddha ni each have one and a half."</blockquote>Ali Akbar Khan
 
"I am still learning about the srutis. They reach to your heart and help you feel the ragas and the notes. In old theory, they say that there are twenty-two in number, but right now I feel that there are more like twenty-three and a half. There is only one sa and one pa. Komal re, komal ga, and komal dha all have three. Shuddha ma, tivra ma, shuddha dha, and komal ni each have two. And shuddha re, shuddha ga, and shuddha ni each have one and a half."
 
Ali Akbar Khan


This quotation yields many insights... Below I have just listed the twenty-three and a half srutis he is referring to.
This quotation yields many insights... Below I have just listed the twenty-three and a half srutis he is referring to.
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With each set of srutis associated with a given note, the principal sruti is listed first, the others in descending order of significance. Ratios given are exact. Cent values given are rounded to the nearest whole cent:
With each set of srutis associated with a given note, the principal sruti is listed first, the others in descending order of significance. Ratios given are exact. Cent values given are rounded to the nearest whole cent:
 
{| class="wikitable"
'''Primary functions'''
|+
 
! colspan="5" |
Sa (1): [1/1; 000]
|-
 
| colspan="2" |Sa
komal re (3):
|1/1
 
|000
komal re: [16/15; 112]
|
 
|-
ati komal re: [256/243; 090]
| rowspan="3" |komal re
 
|komal re
ati ati komal re: [25/24; 070]
|16/15
 
|112
Re (1 1/2):
|
 
|-
shuddha re: [9/8; 204]
|ati komal re
 
|256/243
"half"-status shuddha re: [10/9; 182]
|090
 
|
komal ga (3):
|-
 
|ati ati komal re
komal ga: [6/5; 316]
|25/24
 
|070
ati komal ga: [32/27; 294]
|
 
|-
ati ati komal ga: [75/64; 274]
| rowspan="2" |Re
 
|shuddha re
Ga (1 1/2):
|9/8
 
|204
shuddha ga: [5/4; 386]
|
 
|-
"half"-status shuddha ga: [81/64; 408]
|"half"-status shuddha re
 
|10/9
(inverse ati ati komal dha: [32/25; 428])
|182
 
|
Ma (2):
|-
 
| rowspan="3" |komal ga (3):
shuddha Ma: [4/3; 498]
|komal ga: [6/5; 316]
 
|
ekasruti Ma: [27/20; 520]
|
 
|
tivra Ma (2 [1 3/4]):
|-
 
|ati komal ga: [32/27; 294]
tivra(tar) Ma: [45/32; 590], [729/512; 612]
|
 
|
(these two essentially inverses; maybe not entirely a true priority)
|
 
|-
Pa (1): [3/2; 702] (inverse ekasruti Ma: [40/27; 680])
|ati ati komal ga: [75/64; 274]
 
|
komal dha (3):
|
 
|
komal dha: [8/5; 814]
|-
 
| rowspan="2" |Ga (1 1/2):
ati komal dha: [128/81; 792]
|shuddha ga: [5/4; 386]
 
|
ati ati komal dha: [25/16; 772]
|
 
|
Dha (2 [1 3/4]):
|-
 
|"half"-status shuddha ga: [81/64; 408]
shuddha dha: [5/3; 884], [27/16; 906]
|
 
|
(these two hard to prioritize; maybe a toss-up)
|
 
|-
(inverse ati ati komal ga: [128/75; 926])
|(inverse ati ati komal dha: [32/25; 428])
 
|
komal ni (2 [1 3/4]):
|
 
|
komal ni: [9/5; 1018], [16/9; 996]
|
 
|-
(these two hard to prioritize; maybe a toss-up)
| rowspan="2" |Ma (2):
 
|shuddha Ma: [4/3; 498]
Ni (1 1/2):
|
 
|
shuddha ni: [15/8; 1088]
|
 
|-
"half"-status shuddha ni: [243/128; 1110]
|ekasruti Ma: [27/20; 520]
 
|
(inverse ati ati komal re: [48/25; 1130])
|
|
|-
| rowspan="2" |tivra Ma (2 [1 3/4]):
|tivra(tar) Ma: [45/32; 590],
|
|
| rowspan="2" |(these two essentially inverses; maybe not entirely a true priority)
|-
|[729/512; 612]
|
|
|-
|Pa (1): [3/2; 702]  
|
|
|
|
|-
|(inverse ekasruti Ma: [40/27; 680])
|
|
|
|
|-
|komal dha (3):
|komal dha: [8/5; 814]
|
|
|
|-
|
|ati komal dha: [128/81; 792]
|
|
|
|-
|
|ati ati komal dha: [25/16; 772]
|
|
|
|-
|Dha (2 [1 3/4]):
|shuddha dha: [5/3; 884],  
|
|
| rowspan="2" |(these two hard to prioritize; maybe a toss-up)
|-
|
|[27/16; 906]
|
|
|-
|(inverse ati ati komal ga: [128/75; 926])
|
|
|
|
|-
|komal ni (2 [1 3/4]):
|komal ni: [9/5; 1018], [16/9; 996]
|
|
|(these two hard to prioritize; maybe a toss-up)
|-
|
|
|
|
|
|-
|Ni (1 1/2):
|shuddha ni: [15/8; 1088]
|
|
|
|-
|
|"half"-status shuddha ni: [243/128; 1110]
|
|
|
|-
|(inverse ati ati komal re: [48/25; 1130])
|
|
|
|
|-
|
|
|
|
|
|}


'''Secondary functions and "artifact shrutis" introduced by using 19 or 22 (out of n) edo to simulate ragas'''
'''Secondary functions and "artifact shrutis" introduced by using 19 or 22 (out of n) edo to simulate ragas'''
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