COSTA ACTIONS

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Bill Kibby
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COSTA ACTIONS

Post by Bill Kibby »

Can anyone out there help me with a precise definition of a Costa Action? I have collected and defined many types of upright piano action, including the spring-and-loop ones with long hoppers, but although some of these are sometimes described as being Costa Actions, I can't find a precise definition, or origin of the term.
Piano History Centre
http://pianohistory.info
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If you find old references or links on this site to pianogen.org, they should refer to pianohistory.info
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