A groove-block is a board on which we put the big pipes which do not like on the windchest.

Into my organ there is 3 groove-blocks :

1. The big groove-block

It sits on the floor behin the organ

It contains the biggest heavier and pipes of the organ:

• 8 basses of the flûte à cheminée 8'
• 6 basses of the bourdon 8'
• 12 basses of the gambe 8'

It is constituted by two parts :

1. - The groove block which, as its name indicates it, contains all the engravings to forward the air from the conveyance lines hole to the the pipe hole.

2. - The lid

The two parts mounted

Here's the frame to attach the pipes

The 8 flûte à cheminée Basses

The 26 basses

Installation behin the organ

2. The two small groove blocks

They are fixed to sides right and left of the windchest frame.

The left side groove block contains 2 pipes of the flûte 4' (C1 and D1) and 5 pipes of the gambe 8' (C2 to E2)

The right side groove block contains only 2 pipes of the flûte 4' (C#1 and D#1)

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