{"id":42985,"date":"2026-09-16T22:52:41","date_gmt":"2026-09-16T13:52:41","guid":{"rendered":"https:\/\/www.wakukichi.com\/?p=42985"},"modified":"2026-09-16T22:52:41","modified_gmt":"2026-09-16T13:52:41","slug":"%e3%83%81%e3%83%a5%e3%83%bc%e3%83%8a%e3%83%bc%e3%81%ae440%e3%81%a8442%e3%81%af%e4%bd%95%e3%81%ae%e6%95%b0%e5%ad%97%ef%bc%9f%e5%90%88%e5%a5%8f%e5%89%8d%e3%81%ab%e3%81%9d%e3%82%8d%e3%81%88%e3%82%8b","status":"publish","type":"post","link":"https:\/\/www.wakukichi.com\/?p=42985","title":{"rendered":"\u30c1\u30e5\u30fc\u30ca\u30fc\u306e440\u3068442\u306f\u4f55\u306e\u6570\u5b57\uff1f\u5408\u594f\u524d\u306b\u305d\u308d\u3048\u308b\u57fa\u6e96\u97f3"},"content":{"rendered":"<p><!-- new-articles1000 ADS42316 CAND00535 --><\/p>\n<figure class=\"wkdisplay-image\"><img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/www.wakukichi.com\/wp-content\/uploads\/2026\/09\/pianopractice_header.png\" alt=\"\u9375\u76e4\u3068\u30da\u30c0\u30eb\u306e\u898b\u3048\u308b\u30d4\u30a2\u30ce\u306b\u6905\u5b50\u3068\u30e1\u30c8\u30ed\u30ce\u30fc\u30e0\u3001\u767d\u3044\u7df4\u7fd2\u30ce\u30fc\u30c8\u3092\u914d\u7f6e\u3057\u305f\u30a4\u30e9\u30b9\u30c8\" width=\"1672\" height=\"941\" loading=\"eager\" \/><\/figure>\n<p>\u30c1\u30e5\u30fc\u30ca\u30fc\u306e440\u3084442\u306f\u3001\u57fa\u6e96\u306b\u3059\u308b\u30e9\u3001\u901a\u5e38\u306fA4\u306e\u5468\u6ce2\u6570\u3092\u30d8\u30eb\u30c4\u3067\u793a\u3057\u305f\u6570\u5b57\u3067\u3059\u3002442\u306f440\u3088\u308a\u5c11\u3057\u9ad8\u3044\u57fa\u6e96\u306b\u306a\u308a\u307e\u3059\u3002\u66f2\u306e\u30c6\u30f3\u30dd\u3084\u5168\u3066\u306e\u97f3\u3092\u540c\u3058\u5468\u6ce2\u6570\u3078\u305d\u308d\u3048\u308b\u8a2d\u5b9a\u3067\u306f\u306a\u304f\u3001\u8abf\u5f8b\u5224\u65ad\u306e\u57fa\u6e96\u3092\u5408\u308f\u305b\u308b\u8a2d\u5b9a\u3067\u3059\u3002<\/p>\n<div class=\"wkgd-talk wkgd-talk-waku\" style=\"display:flex;align-items:flex-start;gap:12px;margin:18px 0\"><span class=\"wkgd-talk-icon\" style=\"flex:0 0 52px\"><img decoding=\"async\" src=\"https:\/\/www.wakukichi.com\/wp-content\/plugins\/wakukichi-published-display\/assets\/WAKUCHAN_FACE.png\" width=\"52\" height=\"52\" alt=\"\u30ef\u30af\u3061\u3083\u3093\" \/><\/span><span class=\"wkgd-talk-text\" style=\"display:block;padding:12px 16px;border:1px solid #c7dfe5;border-radius:12px;background:#f1faf8;color:#173442\"><strong>\u30ef\u30af\u3061\u3083\u3093\uff1a<\/strong>440\u3068442\u306f\u901f\u3055\u306e\u8a2d\u5b9a\uff1f<\/span><\/div>\n<div class=\"wkgd-talk wkgd-talk-chappy\" style=\"display:flex;align-items:flex-start;gap:12px;margin:18px 0\"><span class=\"wkgd-talk-icon\" style=\"flex:0 0 52px\"><img decoding=\"async\" src=\"https:\/\/www.wakukichi.com\/wp-content\/plugins\/wakukichi-published-display\/assets\/CHAPPY_FACE.png\" width=\"52\" height=\"52\" alt=\"\u30c1\u30e3\u30c3\u30d4\u30fc\" \/><\/span><span class=\"wkgd-talk-text\" style=\"display:block;padding:12px 16px;border:1px solid #c7dfe5;border-radius:12px;background:#f3f7ff;color:#173442\"><strong>\u30c1\u30e3\u30c3\u30d4\u30fc\uff1a<\/strong>\u57fa\u6e96\u306e\u30e9\u306e\u5468\u6ce2\u6570\u3060\u3088\u3002\u30c6\u30f3\u30dd\u306e\u6570\u5b57\u3067\u306f\u306a\u3044\u3093\u3060\u3002<\/span><\/div>\n<h2>\u540c\u3058\u30e9\u3067\u3082\u57fa\u6e96\u306e\u9ad8\u3055\u304c\u5909\u308f\u308b<\/h2>\n<p>A4\uff1d440Hz\u306a\u3089\u4e00\u79d2\u9593\u306b440\u56de\u3001442Hz\u306a\u3089442\u56de\u306e\u632f\u52d5\u306b\u5bfe\u5fdc\u3057\u307e\u3059\u3002\u3053\u306e\u57fa\u6e96\u306b\u5408\u308f\u305b\u3066\u3001\u30c1\u30e5\u30fc\u30ca\u30fc\u304c\u307b\u304b\u306e\u97f3\u306e\u9ad8\u4f4e\u3092\u5224\u65ad\u3057\u307e\u3059\u3002\u6570\u5b57\u304c\u9055\u3046\u4e8c\u53f0\u3067\u306f\u3001\u540c\u3058\u6f14\u594f\u97f3\u306e\u8868\u793a\u304c\u305a\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u3069\u3061\u3089\u304b\u304c\u5e38\u306b\u6b63\u3057\u3044\u3001\u3042\u308b\u3044\u306f\u9ad8\u3044\u65b9\u304c\u4e0a\u624b\u3068\u3044\u3046\u610f\u5473\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u5408\u594f\u76f8\u624b\u3084\u4f7f\u7528\u3059\u308b\u697d\u5668\u3001\u6f14\u594f\u306e\u65b9\u91dd\u306b\u5408\u308f\u305b\u3066\u6c7a\u3081\u307e\u3059\u3002\u307e\u305a\u5168\u54e1\u306e\u8a2d\u5b9a\u304c\u4e00\u81f4\u3057\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<div class=\"wkgd-talk wkgd-talk-waku\" style=\"display:flex;align-items:flex-start;gap:12px;margin:18px 0\"><span class=\"wkgd-talk-icon\" style=\"flex:0 0 52px\"><img decoding=\"async\" src=\"https:\/\/www.wakukichi.com\/wp-content\/plugins\/wakukichi-published-display\/assets\/WAKUCHAN_FACE.png\" width=\"52\" height=\"52\" alt=\"\u30ef\u30af\u3061\u3083\u3093\" \/><\/span><span class=\"wkgd-talk-text\" style=\"display:block;padding:12px 16px;border:1px solid #c7dfe5;border-radius:12px;background:#f1faf8;color:#173442\"><strong>\u30ef\u30af\u3061\u3083\u3093\uff1a<\/strong>442\u306e\u65b9\u304c\u6b63\u3057\u3044\u306e\u304b\u306a\u3002<\/span><\/div>\n<div class=\"wkgd-talk wkgd-talk-chappy\" style=\"display:flex;align-items:flex-start;gap:12px;margin:18px 0\"><span class=\"wkgd-talk-icon\" style=\"flex:0 0 52px\"><img decoding=\"async\" src=\"https:\/\/www.wakukichi.com\/wp-content\/plugins\/wakukichi-published-display\/assets\/CHAPPY_FACE.png\" width=\"52\" height=\"52\" alt=\"\u30c1\u30e3\u30c3\u30d4\u30fc\" \/><\/span><span class=\"wkgd-talk-text\" style=\"display:block;padding:12px 16px;border:1px solid #c7dfe5;border-radius:12px;background:#f3f7ff;color:#173442\"><strong>\u30c1\u30e3\u30c3\u30d4\u30fc\uff1a<\/strong>\u5408\u594f\u3067\u4f55\u3092\u57fa\u6e96\u306b\u3059\u308b\u304b\u306b\u3088\u308b\u3088\u3002\u307e\u305a\u5168\u54e1\u3067\u63c3\u3048\u3088\u3046\u3002<\/span><\/div>\n<h2>\u52d5\u304b\u3057\u306b\u304f\u3044\u697d\u5668\u3084\u6307\u5b9a\u97f3\u3092\u78ba\u8a8d\u3059\u308b<\/h2>\n<p>\u30d4\u30a2\u30ce\u306a\u3069\u3001\u305d\u306e\u5834\u3067\u3059\u3050\u57fa\u6e96\u3092\u5909\u3048\u3089\u308c\u306a\u3044\u697d\u5668\u304c\u3042\u308b\u5834\u5408\u306f\u3001\u305d\u306e\u697d\u5668\u3084\u6307\u5c0e\u8005\u306e\u6307\u5b9a\u3078\u5408\u308f\u305b\u307e\u3059\u3002\u81ea\u5206\u3060\u3051\u7fd2\u6163\u306e\u6570\u5b57\u3092\u9078\u3076\u306e\u3067\u306f\u306a\u304f\u3001\u5408\u594f\u524d\u306b\u4f55\u3092\u57fa\u6e96\u3068\u3059\u308b\u304b\u5171\u6709\u3057\u307e\u3059\u3002<\/p>\n<p>\u30c1\u30e5\u30fc\u30ca\u30fc\u306b\u79fb\u8abf\u8868\u793a\u3084\u30d5\u30e9\u30c3\u30c8\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\u306a\u3069\u5225\u306e\u8a2d\u5b9a\u304c\u3042\u308b\u5834\u5408\u306f\u3001\u57fa\u6e96\u5468\u6ce2\u6570\u3068\u6df7\u540c\u3057\u307e\u305b\u3093\u3002B\u266d\u7ba1\u306e\u8a18\u8b5c\u97f3\u3068\u5b9f\u97f3\u306e\u9055\u3044\u3082\u3001440\u3068442\u3092\u5909\u3048\u3066\u89e3\u6c7a\u3059\u308b\u554f\u984c\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<div class=\"wkgd-talk wkgd-talk-waku\" style=\"display:flex;align-items:flex-start;gap:12px;margin:18px 0\"><span class=\"wkgd-talk-icon\" style=\"flex:0 0 52px\"><img decoding=\"async\" src=\"https:\/\/www.wakukichi.com\/wp-content\/plugins\/wakukichi-published-display\/assets\/WAKUCHAN_FACE.png\" width=\"52\" height=\"52\" alt=\"\u30ef\u30af\u3061\u3083\u3093\" \/><\/span><span class=\"wkgd-talk-text\" style=\"display:block;padding:12px 16px;border:1px solid #c7dfe5;border-radius:12px;background:#f1faf8;color:#173442\"><strong>\u30ef\u30af\u3061\u3083\u3093\uff1a<\/strong>B\u266d\u7ba1\u306e\u97f3\u540d\u306e\u305a\u308c\u3082\u76f4\u305b\u308b\uff1f<\/span><\/div>\n<div class=\"wkgd-talk wkgd-talk-chappy\" style=\"display:flex;align-items:flex-start;gap:12px;margin:18px 0\"><span class=\"wkgd-talk-icon\" style=\"flex:0 0 52px\"><img decoding=\"async\" src=\"https:\/\/www.wakukichi.com\/wp-content\/plugins\/wakukichi-published-display\/assets\/CHAPPY_FACE.png\" width=\"52\" height=\"52\" alt=\"\u30c1\u30e3\u30c3\u30d4\u30fc\" \/><\/span><span class=\"wkgd-talk-text\" style=\"display:block;padding:12px 16px;border:1px solid #c7dfe5;border-radius:12px;background:#f3f7ff;color:#173442\"><strong>\u30c1\u30e3\u30c3\u30d4\u30fc\uff1a<\/strong>\u305d\u308c\u306f\u79fb\u8abf\u306e\u554f\u984c\u3060\u306d\u3002\u57fa\u6e96\u5468\u6ce2\u6570\u3068\u306f\u5225\u306b\u78ba\u8a8d\u3057\u3088\u3046\u3002<\/span><\/div>\n<h2>\u96fb\u6e90\u3092\u5165\u308c\u76f4\u3057\u305f\u5f8c\u3082\u8868\u793a\u3092\u898b\u308b<\/h2>\n<p>\u6a5f\u7a2e\u306b\u3088\u3063\u3066\u8a2d\u5b9a\u306e\u4fdd\u6301\u65b9\u6cd5\u3084\u521d\u671f\u5024\u304c\u9055\u3044\u307e\u3059\u3002\u524d\u56de442\u306b\u3057\u305f\u304b\u3089\u4eca\u56de\u3082\u540c\u3058\u3068\u306f\u6c7a\u3081\u305a\u3001\u8d77\u52d5\u6642\u306e\u8868\u793a\u3068\u8aac\u660e\u66f8\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u6a5f\u7a2e\u306b\u3088\u3063\u3066\u306f\u6570\u5b57\u306e\u4e00\u6841\u3060\u3051\u3067\u57fa\u6e96\u3092\u8868\u793a\u3059\u308b\u5834\u5408\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u57fa\u6e96\u3092\u63c3\u3048\u305f\u3089\u3001\u5b89\u5b9a\u3057\u305f\u9577\u3044\u97f3\u3067\u8abf\u6574\u3057\u307e\u3059\u3002\u91dd\u304c\u4e2d\u592e\u3067\u3082\u3001\u97f3\u306e\u51fa\u3057\u65b9\u3084\u548c\u97f3\u306e\u4e2d\u306e\u97ff\u304d\u306f\u5225\u306b\u78ba\u8a8d\u304c\u5fc5\u8981\u3067\u3059\u3002\u8a2d\u5b9a\u306e\u4e00\u81f4\u306f\u3001\u4e92\u3044\u306e\u97f3\u3092\u8074\u3044\u3066\u5408\u308f\u305b\u308b\u305f\u3081\u306e\u51fa\u767a\u70b9\u3068\u8003\u3048\u307e\u3057\u3087\u3046\u3002<\/p>\n<div class=\"wkgd-talk wkgd-talk-waku\" style=\"display:flex;align-items:flex-start;gap:12px;margin:18px 0\"><span class=\"wkgd-talk-icon\" style=\"flex:0 0 52px\"><img decoding=\"async\" src=\"https:\/\/www.wakukichi.com\/wp-content\/plugins\/wakukichi-published-display\/assets\/WAKUCHAN_FACE.png\" width=\"52\" height=\"52\" alt=\"\u30ef\u30af\u3061\u3083\u3093\" \/><\/span><span class=\"wkgd-talk-text\" style=\"display:block;padding:12px 16px;border:1px solid #c7dfe5;border-radius:12px;background:#f1faf8;color:#173442\"><strong>\u30ef\u30af\u3061\u3083\u3093\uff1a<\/strong>\u6628\u65e5\u5909\u3048\u305f\u304b\u3089\u4eca\u65e5\u306f\u898b\u306a\u304f\u3066\u3044\u3044\uff1f<\/span><\/div>\n<div class=\"wkgd-talk wkgd-talk-chappy\" style=\"display:flex;align-items:flex-start;gap:12px;margin:18px 0\"><span class=\"wkgd-talk-icon\" style=\"flex:0 0 52px\"><img decoding=\"async\" src=\"https:\/\/www.wakukichi.com\/wp-content\/plugins\/wakukichi-published-display\/assets\/CHAPPY_FACE.png\" width=\"52\" height=\"52\" alt=\"\u30c1\u30e3\u30c3\u30d4\u30fc\" \/><\/span><span class=\"wkgd-talk-text\" style=\"display:block;padding:12px 16px;border:1px solid #c7dfe5;border-radius:12px;background:#f3f7ff;color:#173442\"><strong>\u30c1\u30e3\u30c3\u30d4\u30fc\uff1a<\/strong>\u96fb\u6e90\u3092\u5207\u308b\u3068\u623b\u308b\u6a5f\u7a2e\u3082\u3042\u308b\u3088\u3002\u8d77\u52d5\u6642\u306e\u8868\u793a\u3092\u78ba\u8a8d\u3057\u3066\u306d\u3002<\/span><\/div>\n<h2>\u95a2\u9023\u8a18\u4e8b<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.wakukichi.com\/?p=42941&amp;preview=true\">B\u266d\u306e\u697d\u5668\u306a\u306e\u306b\u30c9\u3068\u8aad\u3080\u306e\u306f\u306a\u305c\uff1f\u8a18\u8b5c\u97f3\u3068\u5b9f\u97f3\u306e\u95a2\u4fc2<\/a><\/li>\n<li><a href=\"https:\/\/www.wakukichi.com\/?p=42981&amp;preview=true\">\u6b4c\u3044\u51fa\u3057\u306e\u97f3\u304c\u53d6\u308c\u306a\u3044\u3068\u304d\u3001\u4f34\u594f\u306e\u3069\u3053\u3092\u8074\u304f\uff1f<\/a><\/li>\n<\/ul>\n<p>\u53c2\u8003\uff1a<a href=\"https:\/\/cdn.korg.com\/us\/support\/download\/files\/8763b941b31ea3b8a58f45a4720de20c.pdf\">KORG GA Custom\u53d6\u6271\u8aac\u660e\u66f8\u30fb\u30ad\u30e3\u30ea\u30d6\u30ec\u30fc\u30b7\u30e7\u30f3\u306e\u8868\u793a<\/a> \uff0f <a href=\"https:\/\/cdn.korg.com\/us\/support\/download\/files\/3024604ca0d3577bf5ee9db81330319d.pdf\">KORG\u30fb\u57fa\u6e96\u97f3\u8a2d\u5b9a\u3068\u8abf\u5f8b\u624b\u9806<\/a>\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u30c1\u30e5\u30fc\u30ca\u30fc\u306e440\u3084442\u306f\u3001\u57fa\u6e96\u306b\u3059\u308b\u30e9\u3001\u901a\u5e38\u306fA4\u306e\u5468\u6ce2\u6570\u3092\u30d8\u30eb\u30c4\u3067\u793a\u3057\u305f\u6570\u5b57\u3067\u3059\u3002442\u306f440\u3088\u308a\u5c11\u3057\u9ad8\u3044\u57fa\u6e96\u306b\u306a\u308a\u307e\u3059\u3002\u66f2\u306e\u30c6\u30f3\u30dd\u3084\u5168\u3066\u306e\u97f3\u3092\u540c\u3058\u5468\u6ce2\u6570\u3078\u305d\u308d\u3048\u308b\u8a2d\u5b9a\u3067\u306f\u306a\u304f\u3001\u8abf\u5f8b\u5224\u65ad\u306e\u57fa\u6e96 &#8230; <\/p>\n","protected":false},"author":1,"featured_media":42914,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","columnck":"","stmeta_robots":"index, 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