slit drum

... Idiophones Struck idiophones Idiophones struck directly Percussion idiophones Percussion vessels Slit drums Wooden percussion vessels, owing to the solidity and elasticity of their substance, vibrate and radiate sound when struck with a non-sonorous object (hand, stick, striker) or against non-sonorous objects. The vessels have a longitudinal slit. The player creates clearly defined individual strokes on the external surface of the instrument. (en)