Joe Garrett wrote: > If you are "restringing" one of these instruments, you should ALWAYS > evaluate the scale using 435cps, (or other standard, such as 425cps > for instruments that are pre-1870's), then reset the pitch standard > to 440cps and "rescale" appropriately, keeping all tensions within > the "original scale" plan. Why 425hz for pre-1870? <http://www.mozartpiano.com/pitch.html> John Delacour wrote: > Get them to send you a list of their authenticated breaking strains > for each wire size <http://www.puresound-wire.com/otherwire.htm> <http://www.puresound-wire.com/datapresentstock.htm> I find no mention of higher tensile strength stainless wire. PScale and other programs may get absolute tensions within small distances from actual, but for modern wire they miss on percent breaking strain, probably cannot calculate for other wire. > the shorter the piano, the greater the fall Why? Some have more than 19 bass notes, and some have fewer than 88 notes. I've measured a couple tiny 1830s English pianos that have the same tension on the lowest plain wire as the highest, pretty close throughout the bass. (An upright similar to these that I saw recently has the smallest wrap wire I've encountered.) Clark
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