<!doctype html public "-//w3c//dtd html 4.0 transitional//en"> <html> A little late but I finally have some time (sleepless night) to look over some saved e-mails. Can anyone point me to a source to learn more about this "Z" factor in scale design? Thanks! Greg Ron Overs wrote: <blockquote TYPE=CITE><style type="text/css"></style> Joseph,  <blockquote type="cite" cite>Folks,</blockquote> <blockquote type="cite" cite>I had a wonderful tuning experience on Friday. A Steinway model C serial No. 105173. Pierce shows it to be a 1902. . . Aside from a strange type of false beat (very faint) in the higher treble (looks like uneven lengths of wire for each unison) the piano was absolutely beautiful, both in an aural and visual sense. I believe the style is a Louis XV, done in Mahogany, rewhatevered done by Washburn Pianos in Phoenix. Looks like a new board, but hard to tell about the bridge. Everything clean and shiny. Nice work by those people. Anyone know of the names of the craftsmen or if they associate with the list?</blockquote>    There are certainly examples where skilled rebuilders have been able to, against all odds, make a decent piano out of something which is by today's design standards, wanting.  <blockquote type="cite" cite> What think ye about the model C, I don't recall see that model discussed much on this list? Give me more of this piano type!</blockquote> <blockquote type="cite" cite> </blockquote> <blockquote type="cite" cite>Joseph Alkana  RPT</blockquote> <blockquote type="cite" cite><a href="mailto:josephspiano@attbi.com">josephspiano@attbi.com</a></blockquote>   In early December 01 scaling was under discussion on the list. I published a page of graphs comparing % breaking strain, Z and inharmonicity for both the Steinway C and our 225 piano. The Steinway C is an older scale which has been designed to break at F21 (presumable to make it look more like the longer Steinway D which also breaks at F 21). However, this crossover point results in a less-than ideal break between the bass and treble bridge on a seven foot piano, since the percentage of breaking strain must fall down to what I would consider to be an unacceptably low value (at the lowest note on the long bridge). The published scale charts, with accompanying notes, are viewable at; <A HREF="http://www.overspianos.com.au/chrts.html">http://www.overspianos.com.au/chrts.html</A> Regards, Ron O. --       OVERS PIANOS        Grand Piano Manufacturers _____________________________ Web:    <A HREF="http://www.overspianos.com.au">http://www.overspianos.com.au</A> Email:  <A HREF="mailto:ron@overspianos.com.au">mailto:ron@overspianos.com.au</A> _____________________________</blockquote> -- Greg Newell <A HREF="mailto:gnewell@ameritech.net">mailto:gnewell@ameritech.net</A>  </html>