The Organ

Restoration Stage Seven

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Date last updated
Sunday, March 12, 2006 6:57 PM

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I was lucky enough to go to an organ recital at the church. Whilst I was there I had another opportunity to see the organ builders in action. They very kindly took some timeout to show and to explain how the rebuild was going and to explain some of the inner workings of the organ

One of the organ builders here has taken one of the oboe reeds apart so that it is possible to see what is inside the casing. He is holding the adjuster which changes the pitch of the reed pipe.

Moving the adjuster

This is a lower reed an F. The pipes that produce the lower notes have longer reeds. So that they don't get too long weights are added, which can be seen at the end of this reed. This makes the reed shorter and more manageable. In this close up the adjusting mechanism can be seen more clearly. As the rod is pushed down the adjuster makes the reed shorter and changes the pitch. With all these pipes the length of the reed is also related to the length of the pipe.

A look at the full oboe pipe shows the holes at the top. The top has a cap on it to prevent the dust and other things entering the pipe and blocking the reed mechanism.

In the flute pipe above the pieces of metal on the sides are to direct the air and stop it all escaping. It is not important on the smaller pipes but absolutely necessary on the larger ones.

Some of the oboe pipes are very long and are curved. This curve stops the dust.

I was interested in the shape of the trumpets. I assumed that the trumpet was bent at the top to somehow direct the sound., but the real reason for this was very much simpler. Because the trumpet is a reed, any dust dropping down will block the reed and stop it functioning. The band at the top simply stops the dust falling through.

 
   
   

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