I have seen several examples of Tri-Chord wound scales. Some were ok, but others were a disaster. I personally don't think the Tri-Chord wound is as effective as the designer wanted it to be. Tri-Chord wounds are usually difficult to tune, in the unisons, because the "fudge" factor of the winding equilibrium, is very minute, which leads to difficult unison tuning. IMHO Bi-Chords, designed properly, are more than sufficient to balance a scale. However, unless you are a really knowledgeable rebuilder, the changing of Tri-Chord to Bi-Chord, is difficult and not recommended. Regards, Joe Garrett, RPT, (Oregon)
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