imported = choreography"""{
  "formatVersion": 1,
  "description": "Synthetic formation score",
  "labels_and_instruments": [
    {
      "label": "A😀",
      "instrument": "Trumpet"
    },
    {
      "label": "A😀"
    }
  ],
  "sheets": [
    {
      "name": "Opening",
      "beats": 4,
      "tempo": 120,
      "points": [
        {
          "pos": [
            16.5,
            32
          ],
          "ref": [
            [
              0,
              0
            ]
          ],
          "symbol": "Plain"
        },
        {
          "pos": [
            48,
            32
          ],
          "symbol": "Sol"
        }
      ],
      "continuities": {
        "Plain": {
          "procedures": [
            {
              "type": "ProcFM",
              "stps": {
                "type": "ValueFloat",
                "val": 2
              },
              "dir": {
                "type": "ValueDefined",
                "defined": "N"
              }
            },
            {
              "type": "ProcFuture",
              "vendor": true
            }
          ],
          "legacy_text": "opaque"
        }
      },
      "fermata": [
        {
          "beat": 1,
          "seconds": 2
        },
        {
          "beat": 1,
          "seconds": 3
        }
      ],
      "curves_with_assignments": [
        {
          "curve": {
            "control_points": [
              [
                16.5,
                32
              ],
              [
                32,
                48
              ],
              [
                48,
                32
              ]
            ]
          },
          "marchers": [
            0,
            1,
            9
          ]
        }
      ],
      "background_images": [
        {
          "left": 0,
          "top": 0,
          "scaledWidth": 1,
          "scaledHeight": 1,
          "data": {
            "width": 1,
            "height": 1,
            "data": "inert",
            "alpha": ""
          }
        }
      ]
    },
    {
      "name": "Opening",
      "beats": 0,
      "tempo": 0,
      "points": [
        {
          "pos": [
            32,
            48
          ],
          "symbol": "Plain"
        },
        {
          "pos": [
            64,
            48
          ],
          "symbol": "Sol"
        }
      ]
    }
  ],
  "mode": {
    "size": [
      160,
      84
    ],
    "offset": [
      0,
      0
    ],
    "border1": [
      32,
      32
    ],
    "border2": [
      128,
      52
    ],
    "hash_west": 0,
    "hash_east": 0,
    "yard_lines": [
      "0",
      "16"
    ]
  },
  "current_sheet": 1,
  "selection_list": [
    1,
    8
  ],
  "media": {
    "name": "https://example.invalid/no-fetch",
    "data": "opaque"
  },
  "vendor": {
    "keep": true
  }
}
"""
performers = imported.performers
formations = imported.formations
curves = imported.curves