{"id":20227,"date":"2026-09-21T21:47:28","date_gmt":"2026-09-21T11:47:28","guid":{"rendered":"https:\/\/geoffreychen.com\/why-a-grand-piano-lid-opens-at-different-angles\/"},"modified":"2026-09-21T21:47:28","modified_gmt":"2026-09-21T11:47:28","slug":"why-a-grand-piano-lid-opens-at-different-angles","status":"publish","type":"post","link":"https:\/\/geoffreychen.com\/zh\/why-a-grand-piano-lid-opens-at-different-angles\/","title":{"rendered":"\u4e09\u89d2\u94a2\u7434\u7684\u9876\u76d6\u4e3a\u4ec0\u4e48\u8981\u652f\u6210\u4e0d\u540c\u89d2\u5ea6\uff1f"},"content":{"rendered":"<\/p>\n<p><img data-recalc-dims=\"1\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/public-assets.geoffreychen.com\/wordpress\/articles\/why-a-grand-piano-lid-opens-at-different-angles\/3848ef89f272a9ec77ceca4d.jpg?w=1140&#038;ssl=1\" alt=\"\u4e09\u89d2\u94a2\u7434\u7684\u9876\u76d6\u4e3a\u4ec0\u4e48\u8981\u652f\u6210\u4e0d\u540c\u89d2\u5ea6\uff1f\" 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href=\"https:\/\/www.yamaha.com\/en\/musical_instrument_guide\/piano\/mechanism\/\" rel=\"nofollow\">https:\/\/www.yamaha.com\/en\/musical_instrument_guide\/piano\/mechanism\/<\/a><br \/><a href=\"https:\/\/www.britannica.com\/art\/piano\" rel=\"nofollow\">https:\/\/www.britannica.com\/art\/piano<\/a><\/p>\n<p>","protected":false},"excerpt":{"rendered":"","protected":false},"author":17897162,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":true,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_geoff_meta_description_en":"A grand piano lid is not merely a volume control: it redirects sound towards players and listeners, so its opening must suit the room and ensemble 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