{
 "source": "Afterclass (https://afterclass.nocti.fr/), from the published Nocti Pool catalogue",
 "updated": "2026-10-14",
 "method": "Tempo, key (Camelot) and energy measured by automatic analysis of each audio file. Tempo readings at double, half or two thirds of the felt tempo are folded back per genre before computing statistics.",
 "rows": [
  {
   "camelot": "1A",
   "standard_notation": "A♭ minor (G♯ minor)",
   "chord": "A♭m",
   "open_key": "6m",
   "tracks": 1235,
   "share": 0.072,
   "page_en": "https://afterclass.nocti.fr/en/camelot-wheel/1a/",
   "page_fr": "https://afterclass.nocti.fr/roue-camelot/1a/"
  },
  {
   "camelot": "2A",
   "standard_notation": "E♭ minor",
   "chord": "E♭m",
   "open_key": "7m",
   "tracks": 1223,
   "share": 0.071,
   "page_en": "https://afterclass.nocti.fr/en/camelot-wheel/2a/",
   "page_fr": "https://afterclass.nocti.fr/roue-camelot/2a/"
  },
  {
   "camelot": "3A",
   "standard_notation": "B♭ minor",
   "chord": "B♭m",
   "open_key": "8m",
   "tracks": 1059,
   "share": 0.062,
   "page_en": "https://afterclass.nocti.fr/en/camelot-wheel/3a/",
   "page_fr": "https://afterclass.nocti.fr/roue-camelot/3a/"
  },
  {
   "camelot": "4A",
   "standard_notation": "F minor",
   "chord": "Fm",
   "open_key": "9m",
   "tracks": 1619,
   "share": 0.094,
   "page_en": "https://afterclass.nocti.fr/en/camelot-wheel/4a/",
   "page_fr": "https://afterclass.nocti.fr/roue-camelot/4a/"
  },
  {
   "camelot": "5A",
   "standard_notation": "C minor",
   "chord": "Cm",
   "open_key": "10m",
   "tracks": 1041,
   "share": 0.061,
   "page_en": "https://afterclass.nocti.fr/en/camelot-wheel/5a/",
   "page_fr": "https://afterclass.nocti.fr/roue-camelot/5a/"
  },
  {
   "camelot": "6A",
   "standard_notation": "G minor",
   "chord": "Gm",
   "open_key": "11m",
   "tracks": 1811,
   "share": 0.105,
   "page_en": "https://afterclass.nocti.fr/en/camelot-wheel/6a/",
   "page_fr": "https://afterclass.nocti.fr/roue-camelot/6a/"
  },
  {
   "camelot": "7A",
   "standard_notation": "D minor",
   "chord": "Dm",
   "open_key": "12m",
   "tracks": 1108,
   "share": 0.064,
   "page_en": "https://afterclass.nocti.fr/en/camelot-wheel/7a/",
   "page_fr": "https://afterclass.nocti.fr/roue-camelot/7a/"
  },
  {
   "camelot": "8A",
   "standard_notation": "A minor",
   "chord": "Am",
   "open_key": "1m",
   "tracks": 1540,
   "share": 0.09,
   "page_en": "https://afterclass.nocti.fr/en/camelot-wheel/8a/",
   "page_fr": "https://afterclass.nocti.fr/roue-camelot/8a/"
  },
  {
   "camelot": "9A",
   "standard_notation": "E minor",
   "chord": "Em",
   "open_key": "2m",
   "tracks": 1593,
   "share": 0.093,
   "page_en": "https://afterclass.nocti.fr/en/camelot-wheel/9a/",
   "page_fr": "https://afterclass.nocti.fr/roue-camelot/9a/"
  },
  {
   "camelot": "10A",
   "standard_notation": "B minor",
   "chord": "Bm",
   "open_key": "3m",
   "tracks": 969,
   "share": 0.056,
   "page_en": "https://afterclass.nocti.fr/en/camelot-wheel/10a/",
   "page_fr": "https://afterclass.nocti.fr/roue-camelot/10a/"
  },
  {
   "camelot": "11A",
   "standard_notation": "F♯ minor",
   "chord": "F♯m",
   "open_key": "4m",
   "tracks": 1092,
   "share": 0.064,
   "page_en": "https://afterclass.nocti.fr/en/camelot-wheel/11a/",
   "page_fr": "https://afterclass.nocti.fr/roue-camelot/11a/"
  },
  {
   "camelot": "12A",
   "standard_notation": "D♭ minor (C♯ minor)",
   "chord": "D♭m",
   "open_key": "5m",
   "tracks": 734,
   "share": 0.043,
   "page_en": "https://afterclass.nocti.fr/en/camelot-wheel/12a/",
   "page_fr": "https://afterclass.nocti.fr/roue-camelot/12a/"
  },
  {
   "camelot": "1B",
   "standard_notation": "B major",
   "chord": "B",
   "open_key": "6d",
   "tracks": 174,
   "share": 0.01,
   "page_en": "https://afterclass.nocti.fr/en/camelot-wheel/1b/",
   "page_fr": "https://afterclass.nocti.fr/roue-camelot/1b/"
  },
  {
   "camelot": "2B",
   "standard_notation": "F♯ major",
   "chord": "F♯",
   "open_key": "7d",
   "tracks": 129,
   "share": 0.008,
   "page_en": "https://afterclass.nocti.fr/en/camelot-wheel/2b/",
   "page_fr": "https://afterclass.nocti.fr/roue-camelot/2b/"
  },
  {
   "camelot": "3B",
   "standard_notation": "D♭ major",
   "chord": "D♭",
   "open_key": "8d",
   "tracks": 121,
   "share": 0.007,
   "page_en": "https://afterclass.nocti.fr/en/camelot-wheel/3b/",
   "page_fr": "https://afterclass.nocti.fr/roue-camelot/3b/"
  },
  {
   "camelot": "4B",
   "standard_notation": "A♭ major",
   "chord": "A♭",
   "open_key": "9d",
   "tracks": 150,
   "share": 0.009,
   "page_en": "https://afterclass.nocti.fr/en/camelot-wheel/4b/",
   "page_fr": "https://afterclass.nocti.fr/roue-camelot/4b/"
  },
  {
   "camelot": "5B",
   "standard_notation": "E♭ major",
   "chord": "E♭",
   "open_key": "10d",
   "tracks": 202,
   "share": 0.012,
   "page_en": "https://afterclass.nocti.fr/en/camelot-wheel/5b/",
   "page_fr": "https://afterclass.nocti.fr/roue-camelot/5b/"
  },
  {
   "camelot": "6B",
   "standard_notation": "B♭ major",
   "chord": "B♭",
   "open_key": "11d",
   "tracks": 250,
   "share": 0.015,
   "page_en": "https://afterclass.nocti.fr/en/camelot-wheel/6b/",
   "page_fr": "https://afterclass.nocti.fr/roue-camelot/6b/"
  },
  {
   "camelot": "7B",
   "standard_notation": "F major",
   "chord": "F",
   "open_key": "12d",
   "tracks": 132,
   "share": 0.008,
   "page_en": "https://afterclass.nocti.fr/en/camelot-wheel/7b/",
   "page_fr": "https://afterclass.nocti.fr/roue-camelot/7b/"
  },
  {
   "camelot": "8B",
   "standard_notation": "C major",
   "chord": "C",
   "open_key": "1d",
   "tracks": 223,
   "share": 0.013,
   "page_en": "https://afterclass.nocti.fr/en/camelot-wheel/8b/",
   "page_fr": "https://afterclass.nocti.fr/roue-camelot/8b/"
  },
  {
   "camelot": "9B",
   "standard_notation": "G major",
   "chord": "G",
   "open_key": "2d",
   "tracks": 170,
   "share": 0.01,
   "page_en": "https://afterclass.nocti.fr/en/camelot-wheel/9b/",
   "page_fr": "https://afterclass.nocti.fr/roue-camelot/9b/"
  },
  {
   "camelot": "10B",
   "standard_notation": "D major",
   "chord": "D",
   "open_key": "3d",
   "tracks": 234,
   "share": 0.014,
   "page_en": "https://afterclass.nocti.fr/en/camelot-wheel/10b/",
   "page_fr": "https://afterclass.nocti.fr/roue-camelot/10b/"
  },
  {
   "camelot": "11B",
   "standard_notation": "A major",
   "chord": "A",
   "open_key": "4d",
   "tracks": 220,
   "share": 0.013,
   "page_en": "https://afterclass.nocti.fr/en/camelot-wheel/11b/",
   "page_fr": "https://afterclass.nocti.fr/roue-camelot/11b/"
  },
  {
   "camelot": "12B",
   "standard_notation": "E major",
   "chord": "E",
   "open_key": "5d",
   "tracks": 160,
   "share": 0.009,
   "page_en": "https://afterclass.nocti.fr/en/camelot-wheel/12b/",
   "page_fr": "https://afterclass.nocti.fr/roue-camelot/12b/"
  }
 ]
}