{
  "comments": {
    "new": "Volume Label: Private Lesson Series",
    "old": "Series: Private Lesson Series"
  },
  "ring_codes": {
    "new": "10920811 01@ E, D MADE IN USA\n8100013\t50262 710 01 + MADE IN GERMANY\tD",
    "old": "10920811 01@ E\n8100013\t50262 710 01 + MADE IN GERMANY\tD"
  }
}