{
  "status": "candidate",
  "source": "audio_playback",
  "display_seconds": "max(previous, playback_position + time_since_last_mix - output_latency)",
  "units": {
    "time": "seconds",
    "tempo": "beats_per_minute",
    "beat": "quarter_note"
  },
  "tempo_map_example_only": [
    {
      "start_beat": 0,
      "bpm": 120,
      "meter": [
        4,
        4
      ]
    }
  ],
  "track_offset_seconds": 0,
  "calibration": {
    "audio_ms": 0,
    "visual_ms": 0,
    "input_ms": 0,
    "sample_count": 20,
    "estimate": "median_valid_taps; report spread; user may adjust"
  },
  "discontinuities": [
    "pause",
    "resume",
    "seek",
    "device_change"
  ],
  "on_discontinuity": "new_epoch; clear_pending_events; count_in_before_resume",
  "hitstop": "presentation_only_audio_and_judgement_continue"
}