Unwrapped ends of bass strings

John Delacour JD@Pianomaker.co.uk
Wed, 03 Oct 2001 17:14:34 +0100


At 09:42 03/10/01 -0400, Newton Hunt wrote:


>The bridge ends are in
>a very nice line with staggered hitch pins.  No error there.

The problem is simple.  Your bridge pins are in a continuous (not the usual 
zig-zag) line.  Therefore the speaking lengths of the bichord pairs is 
different and you need a greater length of cover on the bass side strings 
in order to get the copper line parallel to the agraffes.

If you have supplied the stringmaker with measurements that would result in 
covers of equal length for the two strings, then you (or your colleague) 
have made an error.

The Steinway layout with a continuous bridge pin line:

o----------o----o--@@@@@@@@@@@@@@@@@@@@@@---[]
    o--------o----o--@@@@@@@@@@@@@@@@@@@@@---[]
   o----------o----o--@@@@@@@@@@@@@@@@@@@@@@@---[]
      o--------o----o--@@@@@@@@@@@@@@@@@@@@@@---[]

is not the same as the usual layout with staggered notes and equal covers:

o----------o----o--@@@@@@@@@@@@@@@@@@@@@@---[]
    o-------o----o--@@@@@@@@@@@@@@@@@@@@@@---[]
   o----------o----o--@@@@@@@@@@@@@@@@@@@@@@@---[]
      o-------o----o--@@@@@@@@@@@@@@@@@@@@@@@---[]

JD





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