{
  "name": "アコギ 寸法ノート",
  "scope": "ヤマハFG/FS800系6モデル。寸法と材質の比較であり、音質の優劣や手への適合を決めるものではありません。",
  "checked": "2026-10-09",
  "fields": [
    {
      "key": "width",
      "label": "胴幅",
      "unit": "mm"
    },
    {
      "key": "scale",
      "label": "弦長",
      "unit": "mm"
    },
    {
      "key": "length",
      "label": "全長",
      "unit": "mm"
    },
    {
      "key": "nut",
      "label": "指板幅 上駒部",
      "unit": "mm"
    },
    {
      "key": "back",
      "label": "裏・側板材",
      "unit": ""
    }
  ],
  "products": [
    {
      "id": "fg800",
      "name": "FG800",
      "brand": "YAMAHA",
      "group": "FG",
      "values": {
        "width": 412,
        "scale": 650,
        "length": 1038,
        "nut": 43,
        "back": "ナトーまたはオクメ"
      },
      "source": "https://jp.yamaha.com/musical-instruments/guitars-basses-amps/products/acoustic-guitars/fg-series/fg-800/specs.html",
      "checked": "2026-10-09",
      "note": "表板はスプルース単板。裏・側板の材質が異なります。材質名だけで音の好みを決めず、可能なら同じ条件で試奏してください。",
      "shoppingTarget": "https://search.rakuten.co.jp/search/mall/YAMAHA%20FG800/"
    },
    {
      "id": "fg820",
      "name": "FG820",
      "brand": "YAMAHA",
      "group": "FG",
      "values": {
        "width": 412,
        "scale": 650,
        "length": 1038,
        "nut": 43,
        "back": "マホガニー"
      },
      "source": "https://jp.yamaha.com/musical-instruments/guitars-basses-amps/products/acoustic-guitars/fg-series/fg-800/specs.html",
      "checked": "2026-10-09",
      "note": "表板はスプルース単板。裏・側板の材質が異なります。材質名だけで音の好みを決めず、可能なら同じ条件で試奏してください。",
      "shoppingTarget": "https://search.rakuten.co.jp/search/mall/YAMAHA%20FG820/"
    },
    {
      "id": "fg830",
      "name": "FG830",
      "brand": "YAMAHA",
      "group": "FG",
      "values": {
        "width": 412,
        "scale": 650,
        "length": 1038,
        "nut": 43,
        "back": "ローズウッド"
      },
      "source": "https://jp.yamaha.com/musical-instruments/guitars-basses-amps/products/acoustic-guitars/fg-series/fg-800/specs.html",
      "checked": "2026-10-09",
      "note": "表板はスプルース単板。裏・側板の材質が異なります。材質名だけで音の好みを決めず、可能なら同じ条件で試奏してください。",
      "shoppingTarget": "https://search.rakuten.co.jp/search/mall/YAMAHA%20FG830/"
    },
    {
      "id": "fs800",
      "name": "FS800",
      "brand": "YAMAHA",
      "group": "FS",
      "values": {
        "width": 380,
        "scale": 634,
        "length": 1021,
        "nut": 43,
        "back": "ナトーまたはオクメ"
      },
      "source": "https://jp.yamaha.com/musical-instruments/guitars-basses-amps/products/acoustic-guitars/fg-series/fg-800/specs.html",
      "checked": "2026-10-09",
      "note": "表板はスプルース単板。裏・側板の材質が異なります。材質名だけで音の好みを決めず、可能なら同じ条件で試奏してください。",
      "shoppingTarget": "https://search.rakuten.co.jp/search/mall/YAMAHA%20FS800/"
    },
    {
      "id": "fs820",
      "name": "FS820",
      "brand": "YAMAHA",
      "group": "FS",
      "values": {
        "width": 380,
        "scale": 634,
        "length": 1021,
        "nut": 43,
        "back": "マホガニー"
      },
      "source": "https://jp.yamaha.com/musical-instruments/guitars-basses-amps/products/acoustic-guitars/fg-series/fg-800/specs.html",
      "checked": "2026-10-09",
      "note": "表板はスプルース単板。裏・側板の材質が異なります。材質名だけで音の好みを決めず、可能なら同じ条件で試奏してください。",
      "shoppingTarget": "https://search.rakuten.co.jp/search/mall/YAMAHA%20FS820/"
    },
    {
      "id": "fs830",
      "name": "FS830",
      "brand": "YAMAHA",
      "group": "FS",
      "values": {
        "width": 380,
        "scale": 634,
        "length": 1021,
        "nut": 43,
        "back": "ローズウッド"
      },
      "source": "https://jp.yamaha.com/musical-instruments/guitars-basses-amps/products/acoustic-guitars/fg-series/fg-800/specs.html",
      "checked": "2026-10-09",
      "note": "表板はスプルース単板。裏・側板の材質が異なります。材質名だけで音の好みを決めず、可能なら同じ条件で試奏してください。",
      "shoppingTarget": "https://search.rakuten.co.jp/search/mall/YAMAHA%20FS830/"
    }
  ]
}