Melakarta Ragas and Western Music: The 72 Scales as Intervals and Modes
Carnatic music and Western music grew up an ocean apart, yet they are built on the same twelve semitones. A melakarta raga is a seven-note parent scale, and every one of the 72 of them can be read, exactly, as a Western scale or mode. This is not a loose analogy. The pitch-class sets are identical, and the mapping is precise enough that a pianist and a vainika are describing the same ladder of sound.
Every swara is an interval
The seven Carnatic swaras — Sa, Ri, Ga, Ma, Pa, Dha, Ni — come in sixteen tuned positions. Sa and Pa never move. The other five each have two or three flavours, and each flavour is a specific interval above Sa:
- Ri: R1 a minor second, R2 a major second, R3 an augmented second.
- Ga: G1 a diminished third, G2 a minor third, G3 a major third.
- Ma: M1 a perfect fourth, M2 an augmented fourth.
- Dha: D1 a minor sixth, D2 a major sixth, D3 an augmented sixth.
- Ni: N1 a diminished seventh, N2 a minor seventh, N3 a major seventh.
The subtle part, and the part most charts get wrong, is that the interval follows the degree, not just the piano key. D2 and N1 land on the same key, but one is a major sixth and the other a diminished seventh, because one is a species of Dha and the other a species of Ni. Spelling them correctly is what lets a raga be written on a Western staff without lying about what it is.
The melas you already know
Several melakartas are Western scales you have heard your whole life:
- Dheerasankarabharanam (29) is the major scale, Ionian.
- Natabhairavi (20) is the natural minor, Aeolian.
- Keeravani (21) is the harmonic minor.
- Kharaharapriya (22) is the Dorian mode.
- Harikambhoji (28) is the Mixolydian mode.
- Mechakalyani (65) is the Lydian mode.
- Hanumatodi (8) is the Phrygian mode.
- Mayamalavagowla (15) is the double harmonic major, the scale every Carnatic beginner sings first.
The other 64 melas fill in every remaining seven-note possibility, including scales the West rarely named because they were considered too strange — the vivadi ragas, which carry a pair of almost-touching notes and a bite all their own.
Why the bridge matters
If you play piano or guitar and want to understand raga, start from the scale you already own and walk across. If you are a Carnatic student, the Western names give you a second language for the same feeling, and a door into harmony. The Melakarta Sphere shows this bridge live: switch the labels from Carnatic to Western and every swara relabels itself as its true interval, in colour, over a real tanpura.
Read on: Kharaharapriya and its Dorian character, or how these scales turn into chords.
Common questions
Which melakarta raga is the Western major scale?
Melakarta 29, Dheerasankarabharanam, is the exact Western major scale (Ionian): S R2 G3 M1 P D2 N3, or C D E F G A B on C.
Is there a melakarta that equals the harmonic minor?
Yes. Melakarta 21, Keeravani, is the Western harmonic minor scale, note for note.
How do Carnatic swaras map to Western intervals?
Each of the sixteen swara positions names a degree-accurate interval: R1 a minor second, R2 a major second, R3 an augmented second, G1 a diminished third, and so on, so two swaras on the same piano key (like D2 and N1) are still spelled as different intervals.