On Jan 18, 2011, at 8:16 PM, Ron Nossaman wrote: > > This has been addressed on Pianotech (that other list). An > additional kilo of agraffe mass on the bridge will increase sustain > and change the tonal envelope without any inherently magical > properties of the agraffe. > Ron N Could be, but that doesn't explain how putting some agraffes on a standard bridge makes _those_ unisons sustain so much better than the standard neighbors, as in the Baldwin retrofit shown I think at Grand Rapids. Or did that other list address that seeming magic as well? Regards, Fred Sturm fssturm at unm.edu “Art is not a mirror held up to reality, but a hammer with which to shape it.” Brecht
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