Mary: Welcome to the list. In reply to the broken strings at the capa bar. It might not be the fault of the piano, as much as the piano player. When player plays loud, repetative music, the strings will heat up, and break (just like bending a paper clip). If there is any corrosion on the strings, (from high humidity), it will add to the problem. If you think it is the player, one way to prevent strings from breaking is to decrease the hammer blow distance and reduce the key dip. You will need to make coresponding adjustments in the action, but the result will be that the player will not have as much power in the key stroke. Less power will mean less force on the string. I don't know if this will help, but the toll free number of Yamaha in the US is 800-854-1569. Press 1 for parts and 2 for service. Good Luck Willem Blees RPT St. Louis
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