Beams (secondary beam breaks)

See also: This same example in MusicXML
{
   "mnx": {
      "support": {
         "useBeams": true
      },
      "version": 1
   },
   "global": {
      "measures": [
         {
            "time": {
               "count": 4,
               "unit": 4
            }
         }
      ]
   },
   "parts": [
      {
         "measures": [
            {
               "beams": [
                  {
                     "beams": [
                        {
                           "beams": [
                              {
                                 "events": [
                                    "ev1",
                                    "ev2",
                                    "ev3",
                                    "ev4"
                                 ]
                              }
                           ],
                           "events": [
                              "ev1",
                              "ev2",
                              "ev3",
                              "ev4"
                           ]
                        },
                        {
                           "beams": [
                              {
                                 "events": [
                                    "ev5",
                                    "ev6",
                                    "ev7",
                                    "ev8"
                                 ]
                              }
                           ],
                           "events": [
                              "ev5",
                              "ev6",
                              "ev7",
                              "ev8"
                           ]
                        }
                     ],
                     "events": [
                        "ev1",
                        "ev2",
                        "ev3",
                        "ev4",
                        "ev5",
                        "ev6",
                        "ev7",
                        "ev8"
                     ]
                  },
                  {
                     "beams": [
                        {
                           "beams": [
                              {
                                 "events": [
                                    "ev9",
                                    "ev10"
                                 ]
                              },
                              {
                                 "events": [
                                    "ev11",
                                    "ev12"
                                 ]
                              }
                           ],
                           "events": [
                              "ev9",
                              "ev10",
                              "ev11",
                              "ev12"
                           ]
                        },
                        {
                           "beams": [
                              {
                                 "events": [
                                    "ev13",
                                    "ev14"
                                 ]
                              },
                              {
                                 "events": [
                                    "ev15",
                                    "ev16"
                                 ]
                              }
                           ],
                           "events": [
                              "ev13",
                              "ev14",
                              "ev15",
                              "ev16"
                           ]
                        }
                     ],
                     "events": [
                        "ev9",
                        "ev10",
                        "ev11",
                        "ev12",
                        "ev13",
                        "ev14",
                        "ev15",
                        "ev16"
                     ]
                  }
               ],
               "clefs": [
                  {
                     "clef": {
                        "sign": "G",
                        "staffPosition": -2
                     }
                  }
               ],
               "sequences": [
                  {
                     "content": [
                        {
                           "id": "ev1",
                           "duration": {
                              "base": "32nd"
                           },
                           "notes": [
                              {
                                 "pitch": {
                                    "octave": 5,
                                    "step": "C"
                                 }
                              }
                           ]
                        },
                        {
                           "id": "ev2",
                           "duration": {
                              "base": "32nd"
                           },
                           "notes": [
                              {
                                 "pitch": {
                                    "octave": 5,
                                    "step": "D"
                                 }
                              }
                           ]
                        },
                        {
                           "id": "ev3",
                           "duration": {
                              "base": "32nd"
                           },
                           "notes": [
                              {
                                 "pitch": {
                                    "octave": 5,
                                    "step": "E"
                                 }
                              }
                           ]
                        },
                        {
                           "id": "ev4",
                           "duration": {
                              "base": "32nd"
                           },
                           "notes": [
                              {
                                 "pitch": {
                                    "octave": 5,
                                    "step": "F"
                                 }
                              }
                           ]
                        },
                        {
                           "id": "ev5",
                           "duration": {
                              "base": "32nd"
                           },
                           "notes": [
                              {
                                 "pitch": {
                                    "octave": 5,
                                    "step": "C"
                                 }
                              }
                           ]
                        },
                        {
                           "id": "ev6",
                           "duration": {
                              "base": "32nd"
                           },
                           "notes": [
                              {
                                 "pitch": {
                                    "octave": 5,
                                    "step": "D"
                                 }
                              }
                           ]
                        },
                        {
                           "id": "ev7",
                           "duration": {
                              "base": "32nd"
                           },
                           "notes": [
                              {
                                 "pitch": {
                                    "octave": 5,
                                    "step": "E"
                                 }
                              }
                           ]
                        },
                        {
                           "id": "ev8",
                           "duration": {
                              "base": "32nd"
                           },
                           "notes": [
                              {
                                 "pitch": {
                                    "octave": 5,
                                    "step": "F"
                                 }
                              }
                           ]
                        },
                        {
                           "id": "ev9",
                           "duration": {
                              "base": "32nd"
                           },
                           "notes": [
                              {
                                 "pitch": {
                                    "octave": 5,
                                    "step": "C"
                                 }
                              }
                           ]
                        },
                        {
                           "id": "ev10",
                           "duration": {
                              "base": "32nd"
                           },
                           "notes": [
                              {
                                 "pitch": {
                                    "octave": 5,
                                    "step": "D"
                                 }
                              }
                           ]
                        },
                        {
                           "id": "ev11",
                           "duration": {
                              "base": "32nd"
                           },
                           "notes": [
                              {
                                 "pitch": {
                                    "octave": 5,
                                    "step": "E"
                                 }
                              }
                           ]
                        },
                        {
                           "id": "ev12",
                           "duration": {
                              "base": "32nd"
                           },
                           "notes": [
                              {
                                 "pitch": {
                                    "octave": 5,
                                    "step": "F"
                                 }
                              }
                           ]
                        },
                        {
                           "id": "ev13",
                           "duration": {
                              "base": "32nd"
                           },
                           "notes": [
                              {
                                 "pitch": {
                                    "octave": 5,
                                    "step": "C"
                                 }
                              }
                           ]
                        },
                        {
                           "id": "ev14",
                           "duration": {
                              "base": "32nd"
                           },
                           "notes": [
                              {
                                 "pitch": {
                                    "octave": 5,
                                    "step": "D"
                                 }
                              }
                           ]
                        },
                        {
                           "id": "ev15",
                           "duration": {
                              "base": "32nd"
                           },
                           "notes": [
                              {
                                 "pitch": {
                                    "octave": 5,
                                    "step": "E"
                                 }
                              }
                           ]
                        },
                        {
                           "id": "ev16",
                           "duration": {
                              "base": "32nd"
                           },
                           "notes": [
                              {
                                 "pitch": {
                                    "octave": 5,
                                    "step": "F"
                                 }
                              }
                           ]
                        },
                        {
                           "duration": {
                              "base": "half"
                           },
                           "rest": {}
                        }
                     ]
                  }
               ]
            }
         ]
      }
   ]
}