Introduction to Indian Classical Music: Raga, Tala and the Drone

Listen to a sitar recital or a Carnatic vocal concert for the first time and it can feel like entering a different musical world. There is no chord progression, yet the music holds you with a quiet intensity. Behind that experience is one of the oldest and most sophisticated musical systems on earth, built on a few beautifully simple ideas.

This introduction explains those ideas for curious beginners: what a raga is, how rhythm cycles work, why there is always a drone, and how you can start exploring the music yourself.

Two great traditions

Indian classical music has two main branches. Hindustani music developed mainly in northern India (and is also central to the classical music of Pakistan, Bangladesh and Nepal). Carnatic music is the classical tradition of southern India.

They share the same foundations, raga for melody and tala for rhythm, but differ in repertoire, terminology, ornamentation and performance style. Carnatic music places great weight on composed songs, many of them devotional, while Hindustani performances often give a large share of time to gradual improvised development. Some terms below belong to one tradition only, as noted.

The swaras: Sa Re Ga Ma Pa Dha Ni

Indian music names the seven notes of the scale with syllables called swaras: Sa, Re, Ga, Ma, Pa, Dha, Ni, returning to a higher Sa. Singing them in sequence is called sargam.

The crucial difference from Western naming is that Sa is not a fixed pitch. Each singer or instrumentalist chooses the pitch of Sa that suits their voice or instrument, and every other note is heard relative to it. That makes Indian music fundamentally about relationships between notes rather than absolute pitches.

Sa and Pa are fixed in relation to each other; Pa is a perfect fifth above Sa. The other swaras can appear in different forms. In Hindustani terms, Re, Ga, Dha and Ni can be komal (flattened), and Ma can be tivra (raised). Which versions are used is one of the things that defines a raga.

The tanpura: a constant reference

Almost every Indian classical performance is accompanied by a drone, traditionally from the tanpura, a long-necked string instrument that is plucked continuously and never plays a melody. Its strings are usually tuned to Sa and Pa, though some ragas call for Ma or Ni instead of Pa.

The tanpura's shimmering, buzzing sound fills the room with the tonic. Every note the soloist sings or plays is heard against it, so each swara has a precise colour and relationship to Sa. For a student, practising with a drone is the best way to train accurate intonation. If you do not have a tanpura, the online tanpura drone lets you choose your Sa and tune the first string to Pa, Ma or Ni.

Raga: more than a scale

A raga is the melodic framework of a performance. It is often described as a scale, but that undersells it. A raga includes:

Two ragas can use exactly the same notes and still sound entirely different because of how those notes are approached and emphasised. In the Hindustani tradition, many ragas are also associated with a time of day or season. Raga Bhairav, for example, is traditionally sung in the early morning, and Raga Yaman in the evening.

A set of notes, with specific komal or tivra forms.
An ascent and descent (aroha and avaroha), which may use different notes or move in zigzag patterns.
Characteristic phrases that instantly identify the raga to a trained listener.
Important notes that are emphasised or rested on, and particular ornaments such as slides between notes.
A mood (rasa) the raga is meant to evoke, such as devotion, longing, peace or celebration.

Tala: rhythm in cycles

Tala is the rhythmic framework. Instead of thinking in short, repeating bars, Indian music organises time in cycles of a fixed number of beats (matras), which repeat throughout a piece.

The best-known Hindustani tala is Teentaal, a cycle of 16 beats divided into four sections of four. The first beat of the cycle is called sam, and it is the point everything returns to. Performers love to build intricate phrases that land precisely on sam. In Teentaal, the ninth beat is the khali, an "empty" beat marked by a wave of the hand rather than a clap, which helps listeners keep their place. In Carnatic music, the most common tala is Adi tala, a cycle of eight beats.

In Hindustani music, the tala is usually played on the tabla, a pair of hand drums capable of an astonishing range of sounds. Carnatic music usually uses the mridangam, a double-headed barrel drum.

How a performance unfolds

A Hindustani instrumental performance, for example on sitar or sarod, often follows a gradual arc:

Vocal performances follow a similar idea, with a composition known as a bandish in place of the gat. Carnatic concerts are typically built from several compositions, with improvised sections such as alapana (an unmetered raga exploration) woven around them.

Alap: a slow, unmetered opening with no percussion. The musician introduces the raga note by note, exploring its phrases and mood.
Jor: a steady pulse enters, still without the drums, and the music gains momentum.
Jhala: fast, rhythmic patterns, often using the instrument's drone strings, bring the opening section to a climax.
Gat: a composed piece set to a tala, played with tabla. The musician improvises around it, and the tempo usually increases towards the end.

Riyaz: daily practice

Riyaz means dedicated, regular practice, and it carries real weight in the tradition. Students traditionally spend a great deal of time on long, steady notes against the drone before moving to more complex material. A simple beginning you can try today:

Ten quiet minutes a day trains both voice and ear.

Start the drone at a Sa that feels comfortable for your voice.
Sing a long Sa and listen until it blends completely with the drone.
Sing Sa Re Ga Ma Pa Dha Ni Sa slowly, holding each note, then come back down.
Return to Sa between notes to check that your sense of home has not drifted.

Instruments to explore

Indian classical music has a rich family of instruments: the sitar and sarod with their resonant strings, the bansuri bamboo flute, the veena, the tabla and mridangam, and, in Carnatic music, the violin, which was adopted into the tradition and is now one of its central instruments. You can try several of them in your browser through the Indian instruments collection, including the sitar and the tabla.

Begin by listening

The best way into this music is to listen patiently. Choose a recording, notice the drone, follow the slow unfolding of the alap and try to feel when the cycle returns to sam. Then sing a few swaras against a tanpura yourself. You will quickly discover that a tradition that seems vast at first rests on a simple, beautiful foundation: one steady Sa, and everything heard in relation to it.