Raga: Structure, Characteristics, Classification and Comparison
What this domain tests
You must describe a raga by note-set, aroha-avaroha, jati, vadi, pakad and time, then compare two ragas without confusing scale with melody.
Structural rules
- A raga needs at least five notes, a prescribed ascent and descent, a vadi and identifiable phrases.
- Ragas sharing a scale differ by vadi, pakad and emphasis: Yaman and Yaman Kalyan differ in the treatment of Ma.
- Jati: audava, shadava, sampurna; vakra patterns are common.
- Poorvang (Sa–Ma) and uttarang (Pa–Sa) describe register emphasis.
Classification
- Bhatkhande's ten thats: Bilawal, Khamaj, Kafi, Asavari, Bhairavi, Bhairav, Kalyan, Marwa, Purvi, Todi.
- Carnatic: 72 melakartas.
- Historical raga-ragini classification; time-of-day (prahar).
Comparison
- Yaman (Kalyan that): tivra Ma, all other notes shuddha, vadi Ga, samvadi Ni, evening.
- Bhairav (Bhairav that): komal Re and komal Dha, vadi Dha, samvadi Re, morning.
- Bhairavi: komal r, g, d, n with shuddha M, vadi Ma, samvadi Sa.
- Desh (Khamaj that): shuddha N in aroha, komal n in avaroha.
Worked example
Compare Yaman and Bhairav. Reasoning: list the notes, check aroha and avaroha, identify vadi, then state time and mood. Yaman's tivra Ma and evening character contrast with Bhairav's komal Re and Dha and morning character. The difference is not merely the scale: Bhairav's pakad revolves around Dha and Re.
Traps
- Writing Yaman with shuddha Ma.
- Giving Bhairav a tivra Ma.
- Treating a that as a raga; a that is only a scale.
- Mixing the time cycles of the two ragas.
- Forgetting that komal and tivra marks change the entire phrase structure.