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) > > >
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