MUSICAL INSTRUMENTS - online book

The History And Development Of Musical Instruments From The Earliest Times.

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	72	MUSICAL INSTRUMENTS.
	drum, and a third running across from one of these to the other just in the centre. By this means they obtained two vibrating tongues of wood which, when beaten with a stick, produced sounds as clearly defined as are those of our kettle drums. By
	making one of the tongues thinner than the other they ensured two different sounds, the pitch of which they were enabled to regulate by shaving off more or less of the wood. The bottom of the drum they cut almost entirely open. The traveller, M. Nebel,

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