Basic Concepts of Indian Classical Music
A guided sequence of short articles covering the core concepts of Hindustani music – scales, swars, saptak, thaats, raag structure, aalaap, taans and more.
Patti (Scale)
Step 1 of 52
Indian scales (Safed / Kali), how they map to Western keys, and how Hindustani tuning differs from Western tuning.
Before we talk about raags, we need to talk about something much more basic: which pitch are we starting from? In Western music you might say this song is in the key of C or the key of G In Indian classical music we often talk about patti literally the scale or pitch-reference a performer chooses.
Traditionally in Marathi and some other Indian systems, these scales are named using the words Safed (white) and Kali (black), followed by a number. This lines up very neatly with the white and black keys on a piano.
| Indian Scale Name | On a Piano |
|---|---|
| Safed 1 (White 1) | C |
| Kali 1 (Black 1) | C# / D flat |
| Safed 2 (White 2) | D |
| Kali 2 (Black 2) | D# / E flat |
| Safed 3 (White 3) | E |
| Safed 4 (White 4) | F |
| Kali 3 (Black 3) | F# / G flat |
| Safed 5 (White 5) | G |
| Kali 4 (Black 4) | G# / A flat |
| Safed 6 (White 6) | A |
| Kali 5 (Black 5) | A# / B flat |
| Safed 7 (White 7) | B |
# = Sharp
A singer or instrumentalist chooses a patti that fits their comfortable range. Once that is chosen, the raag is performed relative to that pitch.
Just like in Western music you can play the same song in many keys, in Hindustani music you can present the same raag from different pattis. The relationships between the notes stay the same; only the absolute pitch changes.
Hindustani music, is traditionally based on natural (just) tuning intervals are chosen to resonate with the natural harmonic series. The exact position of Re, Ga, etc. is adjusted by the artist so that they can sing beautifully with the tanpura and the tonic Sa.
Swar (Note)
Shuddha, achal, komal, and teevra swars, how notes behave in Indian classical music.
In Western music you may be used to the note names C, D, E, F, G, A, B. In Indian classical music, the basic notes are called swars: Sa, Re, Ga, Ma, Pa, Dha, Ni. These seven are the musical alphabet from which every raag is built.
Saptak (Register)
Step 3 of 52
Mandra, Madhya, and Taar saptak and how octaves/registers are handled in ICM.
In Western music you talk about octaves – C in one octave, then the next C higher, and so on. In Indian classical music we use the word Saptak, literally “a group of sevenâ€, to describe a register or octave built on the seven swars Sa Re Ga Ma Pa Dha Ni.
We usually work with three main saptaks:
- Mandra Saptak – the lower register (notes that sound deep, chesty, or bass-like).
- Madhya Saptak – the middle register (the “home base†where most melody lives).
- Taar Saptak – the higher register (brighter, more intense notes).
In notation, we often show these using dots:
- A dot below the swar – Mandra saptak (low octave).
- No dot – Madhya saptak (middle octave).
- A dot above the swar – Taar saptak (high octave).
Vocalists learn to shift smoothly between these registers. A khayal singer might start with a calm, deep alaap in Mandra, explore the heart of the raag in Madhya, and then rise into shining Taar swars for emotional peaks. Instrumentalists (on sitar, flute, violin, etc.) use finger positions and technique to move between these saptaks.
Just like a Western singer might talk about “chest voice†and “head voiceâ€, Indian classical artists think in terms of these saptaks – choosing where to place a phrase for the most expressive effect.