Instruments and Their Classification: Tata, Sushir, Avanaddha, Ghan
What the exam tests
Instrument questions ask you to place an instrument in one of the four jati: tata, sushir, avanaddha and ghan, and to justify the choice by how sound is produced.
Core rules
- Tata: string instruments; sound from vibrating strings. Examples: sitar, sarod, tanpura, veena, sarangi (bowed), santoor (struck strings).
- Sushir: wind instruments; sound from a vibrating air column. Examples: bansuri, shehnai, nagaswaram; harmonium is a free-reed wind instrument.
- Avanaddha: membrane-covered drums; sound from a stretched skin. Examples: tabla, pakhavaj, dholak, nagara, mridangam.
- Ghan: solid, non-membrane idiophones; sound from the material itself. Examples: jaltarang, manjira, kartal, ghunghru.
- The classification is by sound source, not by shape or material alone.
Worked example
Classify the sarangi. Reasoning: the player bows strings, so the vibration starts in strings; the skin-covered bowing area does not make it a drum. It is tata, not sushir (no air column) and not avanaddha (no membrane as the main sound source). A common exam follow-up: which is sushir, harmonium or sarangi? Answer: harmonium, because reeds vibrate in an air stream.
Traps
- Putting harmonium under tata because it has keys.
- Calling jaltarang avanaddha because it uses water.
- Calling tabla ghan because its shell is wood.
- Forgetting that sarangi is tata, not avanaddha.