"session band" meaning in English

{
  "forms": [
    {
      "form": "session bands",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "session band (plural session bands)",
      "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"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Collectives",
          "orig": "en:Collectives",
          "parents": [
            "Miscellaneous",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Musicians",
          "orig": "en:Musicians",
          "parents": [
            "Music",
            "Occupations",
            "Art",
            "Sound",
            "People",
            "Work",
            "Culture",
            "Energy",
            "Human",
            "Human activity",
            "Society",
            "Nature",
            "All topics",
            "Human behaviour",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "She performed on 12 albums as a soul singer in a session band before she was able to begin her solo career.",
          "type": "example"
        }
      ],
      "glosses": [
        "A group of musicians who play for the recording of an album but are not considered part of the recording artist's normal band."
      ],
      "id": "en-session_band-en-noun-4AQpHBx~",
      "links": [
        [
          "musician",
          "musician"
        ],
        [
          "album",
          "album"
        ]
      ],
      "related": [
        {
          "word": "studio band"
        },
        {
          "word": "tour band"
        }
      ]
    }
  ],
  "word": "session band"
}

{
  "forms": [
    {
      "form": "session bands",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "session band (plural session bands)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "studio band"
    },
    {
      "word": "tour band"
    }
  ],
  "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",
        "en:Collectives",
        "en:Musicians"
      ],
      "examples": [
        {
          "text": "She performed on 12 albums as a soul singer in a session band before she was able to begin her solo career.",
          "type": "example"
        }
      ],
      "glosses": [
        "A group of musicians who play for the recording of an album but are not considered part of the recording artist's normal band."
      ],
      "links": [
        [
          "musician",
          "musician"
        ],
        [
          "album",
          "album"
        ]
      ]
    }
  ],
  "word": "session band"
}