Hi Ric My "Guide to Restringing" copy shows two scales for the AA. Interesting that the older piano below used 17.5 to <<smooth>> out the transition from 17 to 18 and the newer model jumped from 17 directly to 18. JAT Cheers RicB Serial no 40284 as follows (all trichord unisons in both instances) Gauge Unisons 13 7 13.5 4 14 4 14.5 4 15 5 15.5 6 16 6 16.5 5 17 12 18 6 Serial no 15633 as follows: 13 6 13.5 4 14 4 14.5 4 154 5 15,5 6 16 6 16.5 6 17 8 17.5 4 18 6
This PTG archive page provided courtesy of Moy Piano Service, LLC