{
  "goal": "Plan only the first phrase of Twinkle Twinkle Little Star at 60 BPM. Use the supplied melody exactly and assign it to the right hand. Do not generate joint commands.",
  "melody_midi": [60, 60, 67, 67, 69, 69, 67],
  "duration_beats": [1, 1, 1, 1, 1, 1, 2],
  "observation": {
    "robot_connected": false,
    "keyboard_midi_range": [21, 108],
    "joint_state": null,
    "calibration": null
  }
}