The Dulzaina is a Spanish double reed wind instrument that is part of the oboe family. There are different regional versions of the Dulzaina, such as the Gralla in Catalonia and the bolin-gozo in the Basque region. The Dulzaina originated in ancient Greece and was introduced to Catalan in the 14th century from France. It has a conical shape with seven holes and is typically made of wood. A famous player of the Catalan Gralla is Ivan Caro.

1. DULZAINA
It is an instrument which is part of the family of the oboe.
The Dulzaina is a wind instrument.
Origin
It is a Spanish instrument and there are different types of
this instrument, for example:
In Cataluña there is one type of the Dulzaina which is called
Gralla, and in Basque it is called a bolin-gozo.
The Dulzaina was invented in 5th century B.C. and the name of
this instrument was introduced into the Catalan in the 14th
century from France.
​Materials and shape
What is it made of?
It is a double reed instrument and it has a conical shape which has 7 h​ools
Famous players
In Catalonia the most important Dulzaina player is Ivan Caro.
References
http://www.riusfrancesc.com/la-gralla-i-el-seu-origen_cast.pdf
https://www.google.com/search?client=firefox-b-d&biw=1600&bih=787&tbm=isch&sa=1&ei=Bq6HXNqcEIiIjLsPqumLiAU&q=parts+of+the+dulzaina&oq=parts
+of+the+dulzaina&gs_l=img.3...31537.37791..38043...3.0..0.132.1504.0j13......1....1..gws-wiz-img.......0i7i30j0i8i7i30.g8ndMB5vFiY#imgrc=n91P9hEoANHA0
M​:
https://en.wikipedia.org/wiki/Dulzaina
https://www.google.com/search?q=ivan+caro+interprete+gralla&client=firefox-b-d&tbm=isch&source=iu&ictx=1&fir=-pVcdhBNf7HIHM%253A%252CldysDhzhj
uqq2M%252C_&vet=1&usg=AI4_-kRoraZu5AyVymUb1ScyU0nOOMxvKA&sa=X&ved=2ahUKEwipm8nPhv_gAhULvxoKHVXDA0gQ9QEwAXoECAUQBg#im
grc=-pVcdhBNf7HIHM​: