A gesture = a "savoir-faire" : Sylvie Fouanonvarnishing with method french varnish The gesture is a savoir-faire : sand donw hammer head before voicing A gesture = a "savoir-faire" : varnishing with french varnish method The gesture is a savoir-faire : balance the keyboard before regulate A gesture = a "savoir-faire" : Sylvie Fouanon put on new pin and new string A gesture = a "savoir-faire" : Voicing Scraper soundboard Stringing Erard upright circa 1848 new hammers head and hammer shank on action grand piano