A customer asked me why the original ivory heads on his 1925 Steinway M were beginning to crack up the center. I told him I thought the wood in the keys and the ivory on top were expanding and contracting at different rates when the relative humidity changed. Because they were glued together something had to give and it was the ivory. My question is, was my assumption correct and if so would a humidity control system slow the cracking process? Scott Johnson RPT scott.e.johnson@24stex.com ___ Blue Wave/DOS v2.21 [NR]
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