回复: Light & Lovely Voicing (by Revlon)

[lianqii]

Before going,let the"owner of the piano" to order a bottle of acetone(or
lacquer thinner,alcohol)in Zahle,after your friends' arriving he can make
the solution easily.(he should bring the keytop or shellac.)

PS:  from the list I know the solution of shellac and alcohol(?) has been
used to harden the hammer but I have no experience to use it.
Will anyone tell me a little more about the solution?

-----Original Message-----
发件人: Ron Torrella <torrella@umich.edu>
收件人: PTG-L List <ptg-l@ptg.org>; College & Univ. Tech Forum
<caut@ptg.org>
日期: 1999年3月8日 2:13
主题: Light & Lovely Voicing (by Revlon)


>In early April, a good friend (and customer) of mine will be giving a
concert in Zahle,
>Lebanon in the auditorium of a building that used to be a hotel. He'll be
performing on a
>new Yamaha (170cm - G2?) that he's been told has fairly dead-sounding bass
hammers.
>Ultimately, it would be good to have a technician work on the piano before
he arrives, but
>piano techs are far and few between in the middle east (and nobody's
offered to pay me to
>do the work), so my friend is faced with either performing on the piano
with the dull
>hammers, cancelling the concert or doing a bit of tech-ing for himself.
(Anyone know if
>there are any Yamaha techs in the Greater Lebanon/Israel/Syria area who
might be able to
>do a Service Bond or some warranty work??)
>
>I should mention that I've given this fellow some instruction in regulation
and repairs
>largely because he does a good deal of performing in out-of-the-way venues
where little,
>if any, technical assistance available. (One has to learn to be
self-sufficient in
>situations like that!) He's been doing some minor repair work on his own
piano under my
>direction and does a pretty good job considering he's more a pianist than a
tech.
>
>Anyway, I've been showing him the finer points of touch-up voicing (using
keytop/acetone
>solution), emphasizing that he should always make sure he has the approval
of the owner of
>the piano before he does any doctoring. (I'm under the impression that the
proprietors of
>these Middle Eastern "concert house" venues *expect* the pianist to be able
to perform
>simple repairs and even tune the piano! So, he's not likely to run into
much conflict.)
>The problem we're up against is how to transport keytop solution without
risking spilling
>the stuff.
>
>With that concern in mind, I had a thought about an alternative that I
wonder if anyone
>else has considered or tried (probably in a dire situation). It seems to me
that
>fingernail polish is composed, largely, of butyl and/or ethyl acetate and
nitrocellulose
>(lacquer), along with a host of solids for coloring. I haven't looked, but
I would assume
>that a clear nail polish would *lack* most of those solids. Even so, if one
found the
>right, very light color or clear fingernail polish and thinned it down with
either an
>acetate or acetone fingernail polish remover, would the tone production be
very different
>from the result of using plain old lacquer and lacquer thinner?
>
>If anyone has any bright ideas on how one might safely (and legally)
transport keytop on
>an airline, I'm all ears. It looks like I'll have to put together a "first
aid kit" of
>sorts for my friend.
>--
>Ron Torrella, RPT
>Piano Technician
>University of Michigan             "Dese are de conditions dat prevail."
>School of Music                                         --Jimmy Durante
>734/764-6207 (office/shop)
>734/763-5097 (fax)
>734/572-7663 (home)
>
>
>