| Materials and Manufacture |
Nowadays, I make the head corks from a type of plastic lapped with cork. The reason for this is that cork or wooden corks swell very easily and can become jammed in the bore. If they shrink, as they will when the flute is dry, the cork can shift, with consequences for the internal tuning of the instrument. Plastic corks avoid this problem.
The springs
on the keys of keyed instruments are stainless steel coil springs
as opposed to the traditional brass leaf springs. These springs are easy
to replace, don't corrode or break, and give a very even touch on
all the keys. For the traditionalist, keys can be sprung in the old way
with brass or cupro-nickel leaf springs. Joints are cork lapped,
and keys are padded with best quality stuffed leather pads.Keyless and
keyed flutes are identical in terms of manufacture. The keyless flute although
recommended for beginners, is of exactly the same design and quality as
the more expensive keyed models.