Friends, this is part 2 of my Carnatic write up.
Recap: In Carnatic music, we have sixteen names based on twelve notes. USING HINDUSTANI TERMINOLOGY, the notes are
S
R1 = komal re
R2 = G1 = shuddha re, "ati komal ga"
R3 = G2 = "tivra re", komal ga
G3 = shuddha ga
M1 = shuddha ma
M2 = tivra ma
P
D1 = komal dha
D2 = N1 = shuddha dha, "ati komal ni"
D3 = N2 = "tivra dha", komal ni
N3 = shuddha ni
Hence, we have sixteen notes. However, the Carnatic system doesn't use Hindustani terminology. Friends, please note that things will get very confusing, because one words can mean different things in different paddhatis of singing.
Here is the sargam using CARNATIC TERMINOLOGY.
S = Sadjamam (Tonic)
R 1 = Suddha Risabham (Lowest Ri)
R 2 = Catusruti Risabham (Fourth microtone Ri) same as G 1
R 3 = Satasruti Risabam (Highest microtone Ri) same as G 2
G 1 = Suddha Gandharam (Lowest Ga) same as R 2
G 2 = Sadharana Gandharam (Ordinary Ga) same as R 3
G 3 = Antara Gandharam (Cadenced Ga)
M 1 = Suddha Madhayamam (Lowest ma)
M 2 = Prati Madhyamam (Leader of the ma)
P = Pancham (Fifth or Pa)
D 1 = Suddha Dhaivatam (Lowest Dha)
D 2 = Catusruti Dhaivatam (Fourth microtone Dha) same as N 1
D 3 = Satasruti Dhaivatam (Highest microtone Dha) same as N 2
N 1 = Suddha Nisadam (Lowest Ni) same as D 2
N 2 = Kaisiki Nisadam (Middle Ni) same as D 3
N 3 = Kakali Nisadam (Highest Ni)
Confusing?? đ This is not as easy as Hindustani where a note was shuddha, komal, or tivra. For instance, R2 is Catusruti Rsabham, while G2 is Antara Gandharam. There is no real pattern. Friends, memorization is the key. One tip: shuddha in Hindustani means "pure note." Shuddha in Carnatic music means "flattest version of the note."
Theoretically speaking, when making ragams in South Indian music, we have very unsual forms. If we were to use the lowest form of each note, then we get this scale:
S R1 G1 M1 P D1 N1 S'
This LOOKS right. Why? Because all seven swars are here. If you have a keyboard, please play these. If you don't, convert these to Hindustani notation.
This yields:
S r R m P d D S': Hindustani music would reject this scale, because r R and d D chromatic forms are not allowed. But Carnatic music finds this acceptable. Since this is acceptable, our possibilities of ragas increase.
Let's do some math to find the number of ragas. Let's divide the seven swars into two sections: The purvanga and the uttaranga: The purvanga is the lower half of the raga and the uttaranga is the upper half of the raga. We are going to cut the raga in half through MA. Here are the possible purvangas and uttarangas formed.
PURVANGA UTTARANGA
1A : S R1 G1 1B: D1 N1 S'
2A: S R1 G2 2B: D1 N2 S'
3A: S R1 G3 3B: D1 N3 S'
4A: S R2 G2 4B: D2 N2 S'
5A: S R2 G3 5B: D2 N3 S'
6A: S R3 G3 6B: D3 N3 S'
Before we move on, let's clarify one fact that notes like S R3 G1 are incorect. If you translate this to Hindustani, this becomes S g R. This reduces the value of Ga and Re. Same thing with S R3 G2: translates to S g g, again, demoralizes the value of the Re and Ga. Re and Ga are not simply notes, they are functions.
Since there are six possible purvangas and six possible uttarangas, the total number of possibilites are 6*6 = 36 ragas with shuddha ma. Remember, when defined the purvanga and uttaranga, we excluded ma. Therefore, we have to include the fact that there are 2 Mas (shuddha OR prati).
36*2 (because of two Mas) = 72 possible Carnatic scales.
These scales are known as melakarta or mela. These are equivalent to the Hindustani thaat.
Before I type another post, friends, please take a moment and appreciate the scientific nature of Carnatic music. There are 72 scales proven in Carnatic, while there are 10 scales accepted by most in Hindustani music.