Hi Dave Regarding the GH1 tenor/treble break, the original GH1 had plain strings on the tenor bridge, same as current models. There was a change made about a year after introduction of the GH1 that included using wound strings for the first several notes on the tenor bridge. Later, we increased the length of the tenor bridge (by about 5mm) and went back to using plain strings in this area. Although it's true that I did design a "retro" kit consisting of 3 unisons of wound strings, using larger diameter plain wire on the next 3 notes, we don't recommend using this method. The reason is this. If you choose to change to wound strings and larger diameter plain wire, there is a considerable time investment: approx 1 day when you figure in the time to retune the strings you've replaced. As you indicated in your original post, additional hitch pins need to be installed (2, not 3). In addition to this, the first 3 agraffes need to be changed to doubles instead of triples, and damper felts need to be changed from trichord to bichord. When comparing the cost of doing this work to the cost of judicious voicing, the "right" solution is pretty obvious. Voice instead of redesign. I can assure you that voicing can accomplish just as much improvement. If you look at it philosophically, part of our responsibility to the customer is to provide reasonable service for a reasonable fee. The point here is that, yes, we can improve the transition of the bass/tenor break on the GH1 by using wound strings. You can accomplish the same degree of improvement by proper voicing, thus saving the customer a considerable sum of money. If you're interested, we could get together and work on these instruments. I'll be in Dallas (teaching a Disklavier Service Seminar) from 1/20 through 1/24. Let me know what ya think!! Hope this helps, Brian De Tar, RPT "NO OBSTACLES...ONLY OPPORTUNITIES!!" Yamaha Service Consultant BDeTar@aol.com >>>Brian: >>>I asked some time ago about the GH1 and the possibility of putting >>>copper wrapped strings on the lowest 6 unisons of the treble bridge. >>>Is there a "parts kit" for doing this? Are strings made for this? >>>What about the extra 3 hitch pins needed? >>> >>>I tuned an older GH1 the other day that had 6 wrapped unisons on the >>>treble bridge. I assume that this is the way they were originally >>>done. This piano was vastly better than the ones now being made. I >>>have two customers with the "new" GH1 and I'd love to be able to >>>propose a big improvement to them. >>> >>>dave
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