© Tilman Skowroneck 2012
As the “searches” tab in my blog stats is telling me, many people are interested in the characteristics of beryllium copper harpsichord wire in comparison to other materials. Some time ago, I have posted an explanation in the “Skowroneck harpsichords” tab of the sidebar (see my full text there), but I would like to pull the discussion to the front, and expand it.
As I have stated, beryllium copper is not the same as phosphor bronze (the latter doesn’t sound all that well, hence this whole discussion) although it looks very similar. It has similar characteristics to brass and can be used in harpsichords with a brass scaling, or in the bass of harpsichords with a mixed scaling. I also claim that,
beryllium copper of the kind best known to me also has a good sound. True, most people will have no possibility to make direct comparisons between the various materials – and “good” is a problematic term. I have tested brass and beryllium copper in one single instrument and monitored their properties over a time span of 15 years. I found beryllium copper to sound slightly “fuller” than the brass that is usually available today, but without compromising the appropriate overall “brassy” sound character. Together with the advantages listed above I personally prefer this material. As said above, however, these properties may vary from manufacturer to manufacturer and not all beryllium copper appears to be as good as I describe here.
I am re-posting this here, because I should add that beryllium copper can be hardened just as other wire. This property might in fact be at the bottom of some negative judgments about its usefulness as harpsichord wire. (more…)