{
  "$comment": "Chord qualities. 'degrees' are scale degrees relative to the root (1, b3, #5, bb7, 9, 13...). 'optional' degrees may be omitted in a voicing. 'symbol' is the canonical suffix; 'aliases' are alternative suffixes accepted by the parser.",
  "types": [
    { "id": "maj",   "name": "Major",               "symbol": "",       "aliases": ["M", "maj", "Maj"],                         "degrees": ["1", "3", "5"],                    "optional": [],              "category": "triad" },
    { "id": "min",   "name": "Minor",               "symbol": "m",      "aliases": ["min", "mi", "-"],                          "degrees": ["1", "b3", "5"],                   "optional": [],              "category": "triad" },
    { "id": "dim",   "name": "Diminished",          "symbol": "dim",    "aliases": ["°", "o"],                                  "degrees": ["1", "b3", "b5"],                  "optional": [],              "category": "triad" },
    { "id": "aug",   "name": "Augmented",           "symbol": "aug",    "aliases": ["+", "#5"],                                 "degrees": ["1", "3", "#5"],                   "optional": [],              "category": "triad" },
    { "id": "sus2",  "name": "Suspended 2nd",       "symbol": "sus2",   "aliases": [],                                          "degrees": ["1", "2", "5"],                    "optional": [],              "category": "suspended" },
    { "id": "sus4",  "name": "Suspended 4th",       "symbol": "sus4",   "aliases": ["sus"],                                     "degrees": ["1", "4", "5"],                    "optional": [],              "category": "suspended" },
    { "id": "5",     "name": "Power chord",         "symbol": "5",      "aliases": [],                                          "degrees": ["1", "5"],                         "optional": [],              "category": "power" },
    { "id": "6",     "name": "Major 6th",           "symbol": "6",      "aliases": ["M6", "maj6"],                              "degrees": ["1", "3", "5", "6"],               "optional": ["5"],           "category": "sixth" },
    { "id": "m6",    "name": "Minor 6th",           "symbol": "m6",     "aliases": ["min6", "-6"],                              "degrees": ["1", "b3", "5", "6"],              "optional": ["5"],           "category": "sixth" },
    { "id": "6/9",   "name": "Six-nine",            "symbol": "6/9",    "aliases": ["69", "6add9"],                             "degrees": ["1", "3", "5", "6", "9"],          "optional": ["5"],           "category": "sixth" },
    { "id": "add9",  "name": "Added 9th",           "symbol": "add9",   "aliases": ["add2", "(add9)"],                          "degrees": ["1", "3", "5", "9"],               "optional": ["5"],           "category": "added" },
    { "id": "madd9", "name": "Minor added 9th",     "symbol": "madd9",  "aliases": ["m(add9)", "madd2", "-add9"],               "degrees": ["1", "b3", "5", "9"],              "optional": ["5"],           "category": "added" },
    { "id": "7",     "name": "Dominant 7th",        "symbol": "7",      "aliases": ["dom7"],                                    "degrees": ["1", "3", "5", "b7"],              "optional": ["5"],           "category": "seventh" },
    { "id": "maj7",  "name": "Major 7th",           "symbol": "maj7",   "aliases": ["M7", "Maj7", "ma7", "Δ7", "Δ"],            "degrees": ["1", "3", "5", "7"],               "optional": ["5"],           "category": "seventh" },
    { "id": "m7",    "name": "Minor 7th",           "symbol": "m7",     "aliases": ["min7", "mi7", "-7"],                       "degrees": ["1", "b3", "5", "b7"],             "optional": ["5"],           "category": "seventh" },
    { "id": "mmaj7", "name": "Minor-major 7th",     "symbol": "m(maj7)","aliases": ["mMaj7", "mM7", "m/maj7", "minmaj7", "-Δ7"], "degrees": ["1", "b3", "5", "7"],              "optional": ["5"],           "category": "seventh" },
    { "id": "m7b5",  "name": "Half-diminished",     "symbol": "m7b5",   "aliases": ["ø", "ø7", "m7(b5)", "-7b5"],               "degrees": ["1", "b3", "b5", "b7"],            "optional": [],              "category": "seventh" },
    { "id": "dim7",  "name": "Diminished 7th",      "symbol": "dim7",   "aliases": ["°7", "o7"],                                "degrees": ["1", "b3", "b5", "bb7"],           "optional": [],              "category": "seventh" },
    { "id": "7sus4", "name": "Dominant 7th sus4",   "symbol": "7sus4",  "aliases": ["7sus"],                                    "degrees": ["1", "4", "5", "b7"],              "optional": ["5"],           "category": "suspended" },
    { "id": "7b5",   "name": "Dominant 7th flat 5", "symbol": "7b5",    "aliases": ["7(b5)", "7-5"],                            "degrees": ["1", "3", "b5", "b7"],             "optional": [],              "category": "altered" },
    { "id": "7#5",   "name": "Augmented 7th",       "symbol": "7#5",    "aliases": ["+7", "aug7", "7(#5)", "7+5"],              "degrees": ["1", "3", "#5", "b7"],             "optional": [],              "category": "altered" },
    { "id": "9",     "name": "Dominant 9th",        "symbol": "9",      "aliases": [],                                          "degrees": ["1", "3", "5", "b7", "9"],         "optional": ["5"],           "category": "extended" },
    { "id": "maj9",  "name": "Major 9th",           "symbol": "maj9",   "aliases": ["M9", "Maj9", "Δ9"],                        "degrees": ["1", "3", "5", "7", "9"],          "optional": ["5"],           "category": "extended" },
    { "id": "m9",    "name": "Minor 9th",           "symbol": "m9",     "aliases": ["min9", "-9"],                              "degrees": ["1", "b3", "5", "b7", "9"],        "optional": ["5"],           "category": "extended" },
    { "id": "7b9",   "name": "Dominant 7th flat 9", "symbol": "7b9",    "aliases": ["7(b9)", "7-9"],                            "degrees": ["1", "3", "5", "b7", "b9"],        "optional": ["5"],           "category": "altered" },
    { "id": "7#9",   "name": "Dominant 7th sharp 9","symbol": "7#9",    "aliases": ["7(#9)", "7+9"],                            "degrees": ["1", "3", "5", "b7", "#9"],        "optional": ["5"],           "category": "altered" },
    { "id": "11",    "name": "Dominant 11th",       "symbol": "11",     "aliases": [],                                          "degrees": ["1", "3", "5", "b7", "9", "11"],   "optional": ["3", "5", "9"], "category": "extended" },
    { "id": "m11",   "name": "Minor 11th",          "symbol": "m11",    "aliases": ["min11", "-11"],                            "degrees": ["1", "b3", "5", "b7", "9", "11"],  "optional": ["5", "9"],      "category": "extended" },
    { "id": "13",    "name": "Dominant 13th",       "symbol": "13",     "aliases": [],                                          "degrees": ["1", "3", "5", "b7", "9", "13"],   "optional": ["5", "9"],      "category": "extended" }
  ]
}