Duct flute with 8 playing holes (7 in front and 1 in the back for the thumb). The dilli kaval is a traditional duct flute from Turkey and Azerbaijan. The name in Azerbaijan is tütak. The word "dilli" is Turkish for "tongued" and alludes to the fact that this flute has a duct or "fipple" rather than being rim-blown like a conventional kaval.
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