Peter, That is precisely the point, almost. The question is not _just_ one of density, but of rate of compression, of which density is a factor. There is a special unit of measurement for this, the name of which presently has escaped from my sieve-like mind. Someone from Renner can tell you. The density is important in determining the mass of the individual sheets of felt, which are then cut into strips for hammer making. The rate of compression of the felt, once molded into a hammer, affects what the hammer contributes to the tone of the piano. In a gross example, one would probably not want to put a 12# hammer on a piano with a high tension scale, unless one wanted to satisfy a particular situation. (The hammer would not be heavy enough, of itself, to adequately drive the strings.) More clear? Sort of? Best. Horace >PETER KESTENS >Het Muziekinstrumentenatelier >BELGIUM >KESTENS.P@Debcom.be > To Barrie Heaton, > >Could the density of the felt being of any importancy? The higher it is, >the more it weights? Horace Greeley hgreeley@leland.stanford.edu "Always forgive your enemies, nothing annoys them so much. - Oscar Wilde LiNCS voice: 725-4627 Stanford University fax: 725-9942
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