Theory of Odissi Pakhwaj: Construction, Maintenance, and Acoustics
What this domain tests
This domain tests the instrument itself: construction, materials, tuning, maintenance, and the acoustic effect of the syahi and barrel body. Questions may ask why a head sounds dull or how to tune safely.
Core rules
- The mardal has a barrel-shaped wooden body and two skin heads.
- The left head is larger and usually carries a black syahi; the right head is smaller and is tuned for response.
- Syahi adds mass and damping, shaping pitch and overtones.
- Leather straps or lacing hold and tension the heads; uneven tension distorts the sound and can warp the shell.
- Keep the instrument away from direct sun, damp, and rapid temperature change.
Worked example
If the right head sounds dull, check in order: loose seating, uneven tension, and a worn or dirty skin. Tighten the straps in small, even increments around the rim, testing pitch after each turn. Do not overtighten to force brightness; that chokes the skin and can damage the shell. If the left head buzzes, inspect the syahi and the strap contact before adding more tension.
Traps that cost marks
Overtightening; tuning only one side; exposing the drum to sun or rain; and applying syahi without knowing its effect.