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Looking for a flute Foster Extension

Thank you, Mojo.

I had considered that. But it might need to be a silver tube to sound okay.

I would also need a way do describe it precisely in a way that could be converted to 3D printing instructions.

I appreciate you suggestion though. It is great to be thinking outside of the box.

I made a foil tracing of one, that I plan to take to my flute mechanic to see if he has any suggestions. He was able to improvise a Bb footjoint for me, so that is a possibility.

In the meantime, I am still open to purchasing a used Foster Extension.
 
Thank you, Gandalfe. That site is a good resource. I have been there before.

That site describes the Foster Extension, but does not list any for sale. It does have a list of flute websites. I will see if any of those have a forum.

Unfortunately, the Foster Extension is no longer manufactured. So the only ones for sale are used ones.

I can attest to its effectiveness. My flute coach has one, and I have convinced her to remove it when playing in a small room. It makes the flute loud enough to hurt my ears.
 
Thank you, Gandalfe. That site is a good resource. I have been there before.

That site describes the Foster Extension, but does not list any for sale. It does have a list of flute websites. I will see if any of those have a forum.

Unfortunately, the Foster Extension is no longer manufactured. So the only ones for sale are used ones.

I can attest to its effectiveness. My flute coach has one, and I have convinced her to remove it when playing in a small room. It makes the flute loud enough to hurt my ears.
The pyhysics of the flute make what you describe impossible from an acoustic standpoint. The only thing a Foster extension might conceivably do would be to make the bottom note or two slightly different. Above that there is what is called an "tone hole lattice", in which almost all the sound produced by the instrument is projected from the open tone holes. Very little sound reaches the end of the flute if there are a couple of tone holes open above it, and then it only passes the highest frequencies. There is a reason that something similar to the Foster extension is not seen in use by professional players, which is because it really doesn't do anything at all, in reality.
 
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