I checked the tape again just to be sure and he is very specific that
this measurement is critical for tuning the back D, there was no
other way of understanding it. I fantasised about making a staple
with an outer and inner tube, the cane being tied to the outer tube
and the eye belonging to the inner tube. Then you could slide the
cane up and down and change this measurement in a jiffy.
Thankyou to David Daye & others for the help, very grateful.
To answer the chanter question, I have a Brian Howard D-chanter,
which is known as a straightforward chanter to reed I believe. These
have the brass tube built in so to tune them you just push the reed
up or down, no need to add or remove hemp. Brian makes staples about
51mm long, which is 3.5mm longer that recommended in the video. But I
stress that Allan says on the video that these measurement may have
to be varied for any particular chanter, they are just a starting
One other fun thing I did during the facing of the reed was to hook
it up to a water manometer as described by David Daye quite a while
back. I plugged all the drones except one with bluetac and connected
the last drone to a homemade manometer about a metre high, filled
with water coloured with a bit of fountain pen ink. The first attempt
played nice and clean, a bit on the hard side, with a height
difference of 60cm. David talked of a suitable height difference of
about 14" - 16", or around 35cm - 40cm. With each progressive sanding
of the reed I could follow the height difference fall to 45cm, which
is where I stopped while I still had a back D. Now this manometer is
just great entertainment, you can sit and watch the column fly up and
down while you're practising away.
>This is something I hadn't heard before......soooo I played around
>with this a little bit after work.
>I can't prove to myself that this is true. In fact I can't prove that
>there is any connection between this move and the two "Ds" other than
>the resulting shift in reed position.
>The change of internal volume when moving the staple position dwarfs
>everything else, so it is hard to tell if there are other no-related
>Can anyone confirm the the eye-to-lips measurement has an effect on
>the D's other than through staple position?
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