Hi List, Ron N., Ron O., Del, Terry, et al, A hypothetical (well,maybe not so much) question. Consider a new soundboard installation in a Baldwin 9' grand piano. This new board has not been stressed as yet, i.e. it has not been strung. Also, it's still kind of summery in the Ohio Valley, no heating days yet, humidity is still up. What amount of crown would you expect to see and be able to measure in the center of the board ? In other words, if a straight edge is laid across the rim and the distance between the board and straight edge is say 7" on both ends, what measurement would you want or expect to see in the middle of the straight edge. Or, a thread stretched along the longest rib from underneath, same question. Words of wisdom? Paul E. Dempsey, RPT Piano Technician Sr. Marshall University Huntington, WV 304-696-5418 304-617-1149
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