The first 24 pipes are wooden

 

The other in plain metal.

 

Diameters of the windchest holes

Note
Hole (mm)
 Note
Hole (mm)
 Note
Hole (mm)
do 1
13
 do 3
7
 do 5
6
do# 1
13
 do# 3
7
 do# 5
6
ré 1
12
 ré 3
7
 ré 5
6
ré# 1
12
 ré# 3
7
 ré# 5
6
mi 1
12
 mi 3
7
 mi 5
6
fa 1
12
 fa 3
7
 fa 5
6
fa# 1
11
 fa# 3
7
 fa# 5
6
sol 1
11
 sol 3
7
 sol 5
6
sol# 1
11
 sol# 3
7
la 1
11
 la 3
7
la# 1
11
 la# 3
7
si 1
11
 si 3
7
do 2
10
 do 4
7
do# 2
10
 do# 4
7
ré 2
10
 ré 4
7
ré# 2
9
 ré# 4
7
mi 2
9
 mi 4
7
fa 2
9
 fa 4
7
fa# 2
8
 fa# 4
7
sol 2
8
 sol 4
6
sol# 2
8
 sol# 4
6
la 2
8
 la 4
6
la# 2
8
 la# 4
6
si 2
8
 si 4
6

 

Mouths

 

The 4 first pipes (C1 àD#1) are mounted on two groove-blocks on the right and left windchest sides

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