Pitch
Pitch is how high or low a note feels to your ear. In Carnatic music, every pitch is described relative to Sa — not as a number, but as a feeling.
Simple analogy
Say the word "home" in a deep sleepy voice, then your normal voice, then a bright cheerful one. The word is the same — the feeling changes. That change in feeling is pitch. Every swara has its own pitch address on the musical staircase.
Pitch of each swara — Madhya Sthayi (Kattai 1)
Violin string example
Your A string open = Madhya Sa (middle pitch, settled). Your E string open = Madhya Pa (noticeably higher, open feeling). Both strings are on the same floor — same Sthayi — but Pa sits at a higher pitch than Sa.
What your teacher means by "Shruti seri illai" (ஸ்ருதி சேரி இல்லை)
Your string is vibrating slightly too slowly or too quickly — so the pitch doesn't land cleanly on the swara. Tighten or loosen the peg gently until the note snaps into place and rings clearly.
Shruti has two meanings in practice. It is both the reference tonic (what Sa are you anchored to?) and the fine pitch quality of each individual note (is your Ri sitting perfectly in tune?). Your teacher uses both meanings — listen carefully to which one they mean.
Frequency
Frequency is how many times a string shakes back and forth every second — measured in Hertz (Hz). It is a physical fact, measurable by a tuner. Faster vibration = higher note.
Simple analogy
Flick a thick loose rubber band — it makes a low, slow thud. Flick a thin tightly stretched one — it buzzes high and fast. Your violin strings work the same way. Thicker, looser string = slower kampana = lower pitch. Thinner, tighter string = faster kampana = higher pitch.
Kampana of each violin string — Kattai 1
G
Mandra Sa
~130 Hz
thickest · slowest kampana
D
Mandra Pa
~196 Hz
lower middle
A
Madhya Sa
~261 Hz
home register ✦
E
Madhya Pa
~392 Hz
thinnest · fastest kampana
Kampana wave comparison — slow vs fast
When you press your finger on a string
Pressing your finger shortens the vibrating part of the string. A shorter string vibrates faster — kampana increases — and the pitch rises. This is exactly how you produce Ri, Ga, Ma and all the swaras above open Sa.
Kampana and gamakas
The word kampana also describes the gentle oscillation (wavering) on a note — what we call a gamaka in Carnatic music. When your finger gently rolls on a string, you are creating a rhythmic kampana — the very soul of Carnatic expression.
Pitch is what you hear. Kampana is what the tuner measures. When your teacher says "your Sa is flat," they mean your pitch feels low — your string's kampana is a little too slow. Tighten the peg until the vibration speeds up and the note settles.
Octave
An octave is the journey from one Sa up through all seven swaras to the next Sa. The upper Sa feels like the same note — but sounds twice as bright, because it vibrates exactly twice as fast.
Simple analogy
Imagine a three-storey building. Each floor has the same seven rooms — Sa Ri Ga Ma Pa Da Ni. Climbing from one floor to the next is moving one Sthayi (octave). Same rooms, same names, different floor, different brightness. Your violin spans two full floors plus a little of the third.
The three Sthayi floors on the violin
Mandra Sthayi — மந்திர ஸ்தாயி
Lower octave · deep and grounded · the voice of the earth
G string (Mandra Sa, ~130 Hz) · D string (Mandra Pa, ~196 Hz)
Madhya Sthayi — மத்திம ஸ்தாயி
Middle octave · home register ✦ · most melodies live here
A string (Madhya Sa, ~261 Hz) · E string (Madhya Pa, ~392 Hz)
Tara Sthayi — தார ஸ்தாயி
Upper octave · bright and soaring · expressive peaks
High finger positions on the E string
The doubling rule — why Sa always sounds like Sa
Mandra Sa = ~130 Hz
Madhya Sa = ~261 Hz (130 × 2)
Tara Sa = ~523 Hz (261 × 2)
Each Sa is exactly double the previous. Your ear hears the doubling as "the same note on a different floor." That precise doubling is what defines one octave — in every musical tradition on earth.
Sa – Pa – Sa – Pa – Sa across two octaves
When you bow G → D → A → E → high E on open strings, you travel from Mandra Sthayi through Madhya Sthayi toward Tara Sthayi — crossing two full octaves without pressing a single finger. This is why Sa–Pa–Sa–Pa–Sa opens every Carnatic violin performance. The entire architecture of Carnatic music lives in those five notes.
A child who plays open string Sa cleanly on the A string and then finds the same Sa on the high E string (by pressing) has just crossed one octave — one full Sthayi. The note sounds the same, feels the same, but the kampana has doubled. That is the magic of the octave.
Tonic level
Kattai is the frequency at which you set your Sa. Because Carnatic music is a relative system, Sa can sit at different Hz levels — and all other swaras shift with it perfectly.
Simple analogy
Imagine singing "Sa Ri Ga Ma" starting from a low comfortable note, then singing the exact same pattern starting much higher. The shape and feel of the melody is identical — only the starting height changed. That starting height is the Kattai. Ragas sound the same at any Kattai — they just sit at a different level.
Common Kattais — Madhya Sa frequency
Kattai 1
~261 Hz
Western C4
Common for beginners
Kattai 3
~294 Hz
Western D4
Male vocal range
Kattai 5
~329 Hz
Western E4
Female vocal range
Violin tuning example
When your teacher says "tune to Kattai 3," you tighten your A string until it rings at ~294 Hz. The G, D, and E strings are then tuned relative to that new Sa following the Sa–Pa–Sa–Pa pattern. The swara names never change — only the Hz values shift.
Why Kattai matters — matching the vocalist
A vocalist chooses the Kattai that best suits their voice. The violin must be tuned to match before performing together. If the violinist is at Kattai 1 and the vocalist at Kattai 3, their Sa notes don't align — the music won't blend. Always confirm the vocalist's Kattai before tuning for a performance.
Kattai is unique to Carnatic music. Western music uses fixed absolute pitches (A = 440 Hz, always). Carnatic music uses relative pitches — Sa is wherever you place it. This is why a raga can be sung by a child and a seasoned performer in completely different frequency ranges, and both are perfectly correct.
Full comparison
All four concepts side by side — English, Carnatic term, Tamil meaning, and how each one shows up on the violin.
| Western term | Carnatic term | Tamil meaning | On the violin |
|---|---|---|---|
| Pitch | ஸ்ருதி Shruti | எவ்வளவு உயர்வான அல்லது தாழ்வான ஒலி — how high or low a note feels | Sa feels lower than Pa. Ni feels tense and unresolved. Sa↑ feels like arriving home on a brighter floor. |
| Frequency | கம்பனம் Kampana | ஒரு நொடியில் நாண் நடுங்கும் எண்ணிக்கை — how many times the string vibrates per second | A string = ~261 Hz. E string = ~392 Hz. Pressing a finger shorter raises the kampana and raises the swara. |
| Octave | ஸ்தாயி Sthayi | ஸ்வர அடுக்கின் ஒரு மாடி — one floor of the swara ladder | G + D strings = Mandra floor. A + E strings = Madhya floor. High E positions = Tara floor. Sa doubles in Hz with each floor. |
| Tonic level | கட்டை Kattai | நீங்கள் தேர்ந்தெடுத்த சதம் நிலை — the level at which you set your Sa | Kattai 1 → tune A to ~261 Hz. Kattai 5 → tune A to ~329 Hz. Swara names and raga shapes remain identical. |
How they connect — one sentence
Kampana (vibration speed) creates Shruti (pitch). Shruti lives in a Sthayi (octave floor). The floor you start from is set by your Kattai (tonic level).
When a student tunes their violin before class, all four concepts are at work simultaneously. The Kattai tells you where Sa should be. The kampana of the A string tells the tuner whether you've reached it. The shruti your ear feels tells you if it sounds right. And the Sthayi tells you which floor of the building your open strings live on. Music and physics, inseparable.