[slit-druhm] 
| a hollowed-out log with a long, narrow slit, beaten with a stick or stamped upon to produce a drumming sound, found in many cultures since ancient times. |
slit drum
percussion instrument formed by hollowing a tree trunk through a lengthwise slit and sounded by the players' stamping feet or by beating with sticks; the edges of the slit are usually of different thicknesses, so as to produce different pitches. Unlike membrane drums, which are classified as membranophones, slit drums are idiophones, or resonant solids
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