Jim We had a Heintzman Transposer come through our shop in 1988. It was 54" high, and, as you say, about a foot wider than normal. Typical Heintzman agraffe system, cast into the plate. But the sound! We had more customers comment on the richness and clarity of the sound than any other instrument in the store, and *then* we showed them the transposing feature! Larger soundboard area? Possibly, as the strings were no longer than normal. Biggest problem with the piano was keeping the regulation constant when transposing the keybed. We went with extra-dense wippen cusion felt and back rail cloth to keep the capstans at roughly the same height note for note. Found out in 1991 that the instrument had been dropped off the back of a moving truck. Tried to track down the owner, but they had moved. Cried for a week. Rob Kiddell C.A.P.T. Student P.T.G. Associate
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