Rob, Now I understand. I've seen this on several other pianos but never on a Knabe. Yes, the entire scale should be recalculated. And it is possible that, in this case, plain wire would work better. Del ---------------------------------------- Robert B Edwardsen wrote: > Del: > > The third bridge on this Knabe is "behind" (closer to the tail) the treble bridge so the > speaking length is actually longer than the notes directly above them in the scale. > That's why I was thinking that plain wire might be a solution, of course the entire > instrument would have to be rescaled, something I have never done before. I have seen > lots of third bridges, but they have always been in front of the treble bridge, which I > might add seems to stifle the board a little bit. > > Rob > > Delwin D Fandrich wrote: > > > Rob, > > > > I'm not Jim, but we did just finish a 7' 8" Knabe with three bridges. In spite of my > > general dislike for copper wrapped tri-chord strings I did keep that configuration on > > this piano. The performance was acceptable, but it did confirm all of the reasons why > > I don't like them on pianos of this, or any other, size. We have another Knabe of the > > same size and type. This time I will be converting that section to bi-chord wrapped > > strings. The speaking lengths are much too short for plain steel strings. With the > > bi-chords I can blend unison tensions, string impedances and inharmonicity much better > > than is possible with tri-chord wrapped strings. > > > > Del > > > > -------------------------------------------------------------------- > > > > Robert B Edwardsen wrote: > > > > > Hi Jim: > > > > > > I'm going to restring/rescale an old Knabe grand (#30126) which has an auxiliary > > > bridge for for the transition area to the bass which is behind the treble bridge. > > > Have you ever seen such an arrangement? > > > I won't have the piano in the shop until about August first so I don't have exact > > > measurements at this time, but I'm wondering if this auxiliary bridge might be > > > better off with plain wire. It has tri-chord wound at this time. It was restrung > > > about 25 years ago so I'm not sure how close to the original scale the current > > > wires are. I was wondering what you might do with such an arrangement. > > > > > > Thanks, > > > > > > Rob Edwardsen
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