If it were a spinet, I would suspect the front casters buzzing. other than that I'd guess glass shards in the back against the sounding board or as JR said, a screw between the pate and board. If the ribs are loose, don't worry about glue, just bang in a bunch of screws from the front. Self-tapping pocket hole screws work well. After all, it's not like this piano is not just a truck ride away from landfill. They crush cars don't they... -- Regards, Jon Page
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