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"Mridangam"
The mridangam is a double sided drum. The body of
the instrument is made of one piece of wood. Hollow, the body has two
opertures of different size, one, very small, that will generate high pitched
sounds and another, wider, for low pitched sounds.
The walls of the
instrument are 2/3 centimeters thick and give it stability in the low
frequencies.The goat skin, coupled to the high pitch operture, wears a thick
black disk made of flour, ferric oxid powder and starch stuck to its centre to
allow the emission of harmonics.The skin coupled to the bass operture is
coated in its middle with plain flour paste to give it a perfect tune.The
two skins are stretched together with leather strips. The Mridangam is the
main rhythm instrument of Carnatic
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