Having the longest strings possible will not necessarily give the best sound. String lengths are not nearly as important as is bridge, soundboard, rib and parimeter designs. Design, fabrication and integration are important. String length is not. Some of us have had the pleasure of tuning Yamaha spinets from the mid '70s. They were not loud but they had a wonderfully musical sound with a superb action. It is possible to build a $10,000 spinet but who would buy it? There was one upright piano made that was some 2-" high. Not exactly portable. Newton
This PTG archive page provided courtesy of Moy Piano Service, LLC