"vertical flute" meaning in English

{
  "forms": [
    {
      "form": "vertical flutes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "vertical flute (plural vertical flutes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "en",
          "name": "Musical instruments",
          "orig": "en:Musical instruments",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "en",
          "name": "Woodwind instruments",
          "orig": "en:Woodwind instruments",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Any type of flute that is held vertically when played."
      ],
      "id": "en-vertical_flute-en-noun-ghXWvQIS",
      "links": [
        [
          "music",
          "music"
        ],
        [
          "flute",
          "flute"
        ],
        [
          "vertically",
          "vertically"
        ]
      ],
      "raw_glosses": [
        "(music) Any type of flute that is held vertically when played."
      ],
      "topics": [
        "entertainment",
        "lifestyle",
        "music"
      ]
    }
  ],
  "word": "vertical flute"
}

{
  "forms": [
    {
      "form": "vertical flutes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "vertical flute (plural vertical flutes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Musical instruments",
        "en:Woodwind instruments"
      ],
      "glosses": [
        "Any type of flute that is held vertically when played."
      ],
      "links": [
        [
          "music",
          "music"
        ],
        [
          "flute",
          "flute"
        ],
        [
          "vertically",
          "vertically"
        ]
      ],
      "raw_glosses": [
        "(music) Any type of flute that is held vertically when played."
      ],
      "topics": [
        "entertainment",
        "lifestyle",
        "music"
      ]
    }
  ],
  "word": "vertical flute"
}