Instrument Structure & Components (Detailed) MCQs Quiz | Class 10

Understanding Carnatic Percussion Instruments: Structure and Components

Carnatic music boasts a rich tradition of percussion instruments, each with a unique sound and construction. A deep understanding of their structure and components is crucial for both performers and enthusiasts. This section delves into the intricate details of some primary Carnatic percussion instruments, enhancing your theoretical knowledge.

Key Instruments and Their Anatomy:

• Mridangam: Often called the “King of Percussion” in Carnatic music. It is a double-sided barrel drum.
  • Body (Kati): Typically carved from a single block of wood (e.g., jackwood).
  • Heads (Valantali & Edamtali): The right head (Valantali) is smaller and produces higher pitches, while the left head (Edamtali) is larger and produces lower pitches. Both are multi-layered animal skin membranes.
  • Sootru & Puramkettu: Inner and outer rims that secure the membranes.
  • Thoppi (Soru/Karanai): A permanent black paste made of rice flour, iron filings, and tamarind juice applied to the center of the right head, crucial for tuning and tone.
  • Nadam (Straps): Leather straps running along the length of the body, connecting the two heads and used for tensioning and tuning.
  • Kattan (Wooden Blocks): Small wooden blocks inserted between the straps and the body to further adjust tension and pitch.
• Ghatam: A clay pot drum, ancient and unique in its sound.
  • Body: Made of special clay mixed with iron filings and other materials, then fired. The shape and thickness vary, affecting the sound.
  • Mouth (Vaay): The open top, which can be covered or left open to produce different sounds.
  • Base: The flat or rounded bottom on which it rests. Played directly with hands and fingers, using different parts of the pot for various tonal effects.
• Kanjira: A small frame drum with jingles.
  • Frame: Circular wooden frame, usually made of jackwood.
  • Membrane: Traditionally made from monitor lizard skin (now often synthetic alternatives due to conservation concerns), stretched over one side of the frame.
  • Jingles (Bells/Cymbals): One or two pairs of small metal discs attached to the frame, adding a shimmering sound.
• Morsing: A type of jaw harp.
  • Frame: A C-shaped metal frame (iron or brass) held against the performer’s mouth.
  • Tongue (Reed): A thin, springy metal tongue fixed at one end to the frame and free at the other.
  • String: A small string or thread attached to the free end of the tongue, which is plucked to make it vibrate. The mouth cavity acts as a resonator.
• Thavil: A large, barrel-shaped drum, primarily used in Naadaswaram ensembles.
  • Body: Made of a hollowed-out log (jackwood or similar).
  • Heads: Two goat skin membranes, larger than Mridangam heads, stretched over hoops.
  • Straps: Braided leather straps tensioning the heads.
  • Sticks (Kuchi): Played with a stick on one side and fingers/thumb thimbles on the other.

Materials and Sound Production:

The choice of materials directly impacts the sound quality and characteristics of each instrument. Wood for resonant bodies, animal skins for vibrant membranes, clay for earthy tones, and metal for sharp percussive or twanging sounds are all integral. Sound is produced by striking membranes (Mridangam, Kanjira, Thavil), vibrating an air column within a chamber (Ghatam), or plucking a metal tongue (Morsing), with the body of the instrument acting as a resonator.

Quick Revision Points:

• Mridangam: Double-headed barrel drum, jackwood body, permanent black paste (thoppi).
• Ghatam: Clay pot, no membranes, played directly with hands.
• Kanjira: Wooden frame, lizard skin membrane, metal jingles.
• Morsing: Metal jaw harp, vibrating metal tongue.
• Thavil: Large barrel drum, two goat skin heads, played with stick and fingers.

Practice Questions:

1. Which Carnatic percussion instrument is made primarily of baked clay?
2. What is the function of the ‘Kattan’ (wooden blocks) in a Mridangam?
3. Name the part of the Morsing that vibrates to produce sound.
4. How many pairs of jingles typically adorn a Kanjira?
5. Besides the wooden body, what is the main material used for the heads of a Thavil?