That is a special Tabor-pipe from Katalonien/ Espagna.
It has not 3 holes but 7 holes.
The left hand plays with three fingers the holes on the front and with thumb and the small finger two holes on the backside. .
The right hand plays the three holes downstairs for the deep notes.
So you can play two full octaves at this flute.
The Flaviol is made from Bubinga.
fingering chart