[CAUT] h'chord regulation question

[Fred Sturm]

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Hi Dave,
    I agree with your assessment of normal plucking order (4=B9, back 8=B9,
front 8=B9/upper keyboard). A helpful hint for those who really get deep into
harpsichords: generally the jack operated by the upper keyboard comes last,
and this makes the upper keyboard touch feel lousy, as there is such a
distance before the plectrum meets the string, and pluck happens late in th=
e
keystroke (a feel analogous to lack of aftertouch in a piano, as the pluck
happens close to where the key bottoms out). To alleviate this problem, it
helps to introduce a small amount of lost motion between the dogleg of the
lower key and the bottom of the upper key. This must be a subtle and even
amount of lost motion (obtained by filing a wee bit off the top of the
dogleg). The result is that part of the stagger when the bottom key is
played consists of that lost motion. From the point of view of the upper
key, pluck happens sooner (plectrum can be closer to the string at rest).
    This may be completely unintelligible to many. If so, you should
probably ignore it, as you probably don=B9t know enough and have enough
experience to make successful use of it.
Regards,
Fred Sturm
University of New Mexico


On 2/3/05 10:02 PM, "Dave Doremus" <algiers_piano@bellsouth.net> wrote:

> Just to point out that it would be well worth the money to have Don do th=
e
> voicing and regulating on your instrument if he is available, he is the b=
est I
> have ever heard, and I've heard some good ones. (Also a damn fine
> harpsichordist, does Fats Waller and Foggy Mountain Breakdown as well as =
more
> traditional fare.) Different choirs cannot pluck simultaneously or it wil=
l be
> practically unplayable when coupled and 4' on. Some folks have advocated =
4',
> front 8' then back 8', IMHO this is rare, either back 8' , 4', front 8', =
or
> 4', back 8', front 8' (the two lower manual sets of jacks should pluck fi=
rst).
> The trick to doing this right is to get the jacks that pluck first at an =
even
> distance below the strings, in a builders shop we used to do this without
> dampers, setting the plectra right on the bottom side of the string and t=
hen
> taking one turn (more or less if necessary, but the same on all notes) of=
 the
> end pins to give clearance. Note also that voicing affects stagger, if yo=
u
> change the voicing you need to recheck the stagger. Hope this is helpful,=
 if
> delayed, due to Mardi Gras season my email reading is slower than normal.
>=20
> ----Dave
>=20
>=20
> -----------------------------
> Dave Doremus, RPT
> New Orleans
> ------------------------------



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