"third stream" meaning in English

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        "2": "Gunther Schuller",
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      "expansion": "Coined by composer Gunther Schuller in 1957",
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  "etymology_text": "Coined by composer Gunther Schuller in 1957.",
  "head_templates": [
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      "expansion": "third stream (uncountable)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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          "langcode": "en",
          "name": "Music",
          "orig": "en:Music",
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      "examples": [
        {
          "ref": "2001, Ellen Koskoff, editor, The Garland Encyclopedia of World Music: North America, Garland Publishing, page 335",
          "text": "The movement they brought into existence, \"Third Stream\", was for the most part an effort by jazz composers and musicians to adopt some of the conventions […]",
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        }
      ],
      "glosses": [
        "A form of jazz created in the 1950s, performed in ensembles in a style influenced by Western classical music, such as by using musical notation and eschewing improvisation."
      ],
      "id": "en-third_stream-en-noun-ChXguitp",
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        [
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          "Western"
        ],
        [
          "classical music",
          "classical music"
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        [
          "musical notation",
          "musical notation"
        ],
        [
          "improvisation",
          "improvisation"
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      "raw_glosses": [
        "(music) A form of jazz created in the 1950s, performed in ensembles in a style influenced by Western classical music, such as by using musical notation and eschewing improvisation."
      ],
      "synonyms": [
        {
          "word": "thirdstream"
        },
        {
          "word": "Third Stream"
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      ],
      "tags": [
        "uncountable"
      ],
      "topics": [
        "entertainment",
        "lifestyle",
        "music"
      ]
    }
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  "word": "third stream"
}

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      "expansion": "Coined by composer Gunther Schuller in 1957",
      "name": "coin"
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  ],
  "etymology_text": "Coined by composer Gunther Schuller in 1957.",
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    {
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  "lang_code": "en",
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          "ref": "2001, Ellen Koskoff, editor, The Garland Encyclopedia of World Music: North America, Garland Publishing, page 335",
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      ],
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        "A form of jazz created in the 1950s, performed in ensembles in a style influenced by Western classical music, such as by using musical notation and eschewing improvisation."
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      "links": [
        [
          "music",
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          "jazz",
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        "(music) A form of jazz created in the 1950s, performed in ensembles in a style influenced by Western classical music, such as by using musical notation and eschewing improvisation."
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      "topics": [
        "entertainment",
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  ],
  "synonyms": [
    {
      "word": "thirdstream"
    },
    {
      "word": "Third Stream"
    }
  ],
  "word": "third stream"
}