"headphone concert" meaning in English

{
  "forms": [
    {
      "form": "headphone concerts",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "headphone concert (plural headphone concerts)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "The Flaming Lips put on the first headphone concert on March 20 1999 at the South By Southwest festival in Dallas.",
          "type": "example"
        }
      ],
      "glosses": [
        "A live music concert and/or performance where the audience, in the same venue as the performing artist(s), listens to the live music and/or sounds through headphones."
      ],
      "id": "en-headphone_concert-en-noun-9qv4Ml4J",
      "wikipedia": [
        "headphone concert"
      ]
    }
  ],
  "word": "headphone concert"
}

{
  "forms": [
    {
      "form": "headphone concerts",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "headphone concert (plural headphone concerts)",
      "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",
        "English terms with usage examples",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "text": "The Flaming Lips put on the first headphone concert on March 20 1999 at the South By Southwest festival in Dallas.",
          "type": "example"
        }
      ],
      "glosses": [
        "A live music concert and/or performance where the audience, in the same venue as the performing artist(s), listens to the live music and/or sounds through headphones."
      ],
      "wikipedia": [
        "headphone concert"
      ]
    }
  ],
  "word": "headphone concert"
}