IsoGrego

Find the top n Gregorian chants most similar to a given one, sorted by cosine TF-IDF similarity of the GABC files.

Last sync with GregoBase: 2025-12-19. Max GregoBase ID: 20393.

🎩 tip: "How to compute the similarity between two text documents?" StackOverflow question. Originally inspired by "examples of same setting, different texts?" MusicaSacra forum thread. See the source code on GitHub.

See, e.g.: 1961 Solesmes Liber Usualis

Click on the chant name to expand/contract the collapsible. Click the chant image to open it up in GregoBase. Click the 🔍 to find similarities to the given chant.

  1. 🔍 100% Iste Confessor (Impr. Stigmatum)Iste Confessor (Impr. Stigmatum)
  2. 🔍 93% Iste Confessor (Conf. not Bishop)Iste Confessor (Conf. not Bishop)
  3. 🔍 92% Iste Confessor (Conf. not Bishop) 5Iste Confessor (Conf. not Bishop) 5
  4. 🔍 77% Iste Confessor (Conf. not Bishop) 8Iste Confessor (Conf. not Bishop) 8
  5. 🔍 73% Iste Confessor (Conf. Bishop)Iste Confessor (Conf. Bishop)
  6. 🔍 72% Iste Confessor (Conf. Bishop) 1Iste Confessor (Conf. Bishop) 1
  7. 🔍 70% Iste Confessorum Domini (in Feriis quintis)Iste Confessorum Domini (in Feriis quintis)
  8. 🔍 70% Iste Confessorum Domini (Stig. Francisci)Iste Confessorum Domini (Stig. Francisci)
  9. 🔍 67% Iste Confessorum Domini (in Dominicis)Iste Confessorum Domini (in Dominicis)
  10. 🔍 66% Iste Confessor (Conf. Bishop) (another chant) (2)Iste Confessor (Conf. Bishop) (another chant) (2)
  11. 🔍 66% Iste Confessor (Conf. Bishop) 4Iste Confessor (Conf. Bishop) 4
  12. 🔍 64% Iste Confessor (Conf. Bishop) 2Iste Confessor (Conf. Bishop) 2
  13. 🔍 64% Iste Confessor (Conf. Bishop) (another chant)Iste Confessor (Conf. Bishop) (another chant)
  14. 🔍 62% Iste Confessor (Conf. Bishop) 3Iste Confessor (Conf. Bishop) 3
  15. 🔍 60% Iste Confessorum Domini (in Feriis secundis)Iste Confessorum Domini (in Feriis secundis)
  16. 🔍 55% Iste Confessorum Domini (in Feriis tertiis)Iste Confessorum Domini (in Feriis tertiis)
  17. 🔍 55% Iste Confessor (Conf. not Bishop) 7Iste Confessor (Conf. not Bishop) 7
  18. 🔍 54% Iste Confessorum Domini (ad libitum)Iste Confessorum Domini (ad libitum)
  19. 🔍 53% Iste Confessorum Domini (in Feriis quartis)Iste Confessorum Domini (in Feriis quartis)
  20. 🔍 49% Iste Confessor (Conf Pont in Duplicibus Minoribus)Iste Confessor (Conf Pont in Duplicibus Minoribus)
  21. 🔍 48% Sic Patres vitamSic Patres vitam
  22. 🔍 46% Iste Confessor (Conf non Pont in Duplicibus Minoribus) (Si non est dies obitus)Iste Confessor (Conf non Pont in Duplicibus Minoribus) (Si non est dies obitus)
  23. 🔍 46% Iste Confessor (Conf non Pont in Duplicibus Minoribus)Iste Confessor (Conf non Pont in Duplicibus Minoribus)
  24. 🔍 46% Iste Confessorum Domini (in Sabbato)Iste Confessorum Domini (in Sabbato)
  25. 🔍 43% Iste Confessor (Conf. not Bishop) (another chant)Iste Confessor (Conf. not Bishop) (another chant)
  26. 🔍 43% Iste confessor (II)Iste confessor (II)
  27. 🔍 43% Iste Confessor (Conf. not Bishop) 6Iste Confessor (Conf. not Bishop) 6
  28. 🔍 41% Iste Confessorum Domini (in Feriis sextis)Iste Confessorum Domini (in Feriis sextis)
  29. 🔍 41% Iste confessor (III)Iste confessor (III)
  30. 🔍 40% Iste Confessor (Pro Doctoribus)Iste Confessor (Pro Doctoribus)
  31. 🔍 40% Inclytos ChristiInclytos Christi
  32. 🔍 38% Iste Confessor (Conf Pont in Duplicibus Majoribus)Iste Confessor (Conf Pont in Duplicibus Majoribus)
  33. 🔍 38% Mente jucundaMente jucunda
  34. 🔍 35% Sanctorum meritisSanctorum meritis
  35. 🔍 35% Ut queant laxisUt queant laxis
  36. 🔍 34% O nimis felixO nimis felix
  37. 🔍 34% Bella dum lateBella dum late
  38. 🔍 34% Caeli civesCaeli cives
  39. 🔍 34% Sanctorum meritis inclyta gaudiaSanctorum meritis inclyta gaudia
  40. 🔍 33% Exsultet jam AngelicaExsultet jam Angelica
  41. 🔍 33% Iste confessor (I)Iste confessor (I)
  42. 🔍 33% Sanctorum meritis inclyta gaudiaSanctorum meritis inclyta gaudia
  43. 🔍 32% Inclitos ChristiInclitos Christi
  44. 🔍 32% Gloria XIGloria XI
  45. 🔍 32% Inclitus pastorInclitus pastor
  46. 🔍 32% O vos unanimesO vos unanimes
  47. 🔍 32% Iste confessor (IIa)Iste confessor (IIa)
  48. 🔍 32% Grande RaymundiGrande Raymundi
  49. 🔍 31% O gente felix hospitaO gente felix hospita
  50. 🔍 31% Non illam cruciansNon illam crucians
  51. 🔍 31% Te Deum (sec. mor. Rom.)Te Deum (sec. mor. Rom.)
  52. 🔍 31% Auctor salutisAuctor salutis
  53. 🔍 31% Virgo quae nostrisVirgo quae nostris
  54. 🔍 31% Auctor salutis uniceAuctor salutis unice
  55. 🔍 31% Dum tuos omnes!Dum tuos omnes!
  56. 🔍 31% Inclytos ChristiInclytos Christi
  57. 🔍 31% O quot undis lacrimarumO quot undis lacrimarum
  58. 🔍 31% Exsultet iam angelicaExsultet iam angelica
  59. 🔍 31% O Redemptor O Redemptor
  60. 🔍 30% Te Deum (sec. mor. Rom)Te Deum (sec. mor. Rom)
  61. 🔍 30% O lux beata CaelitumO lux beata Caelitum
  62. 🔍 30% Te gratulantesTe gratulantes
  63. 🔍 30% Terrena cessent organaTerrena cessent organa
  64. 🔍 30% Venite exultemus IV GVenite exultemus IV G
  65. 🔍 30% Tu natale solum protegeTu natale solum protege