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 (I)Iste confessor (I)
  2. 🔍 72% Virginis proles (I)Virginis proles (I)
  3. 🔍 71% Christe sanctorumChriste sanctorum
  4. 🔍 56% Iste confessor (III)Iste confessor (III)
  5. 🔍 56% Iste confessor (II)Iste confessor (II)
  6. 🔍 51% Iste Confessor (Conf Pont in Duplicibus Minoribus)Iste Confessor (Conf Pont in Duplicibus Minoribus)
  7. 🔍 49% Iste Confessor (Conf Pont in Duplicibus Majoribus)Iste Confessor (Conf Pont in Duplicibus Majoribus)
  8. 🔍 45% Rerum Deus fonsRerum Deus fons
  9. 🔍 45% Iste Confessor (Pro Doctoribus)Iste Confessor (Pro Doctoribus)
  10. 🔍 41% O lux beata Trinitas (hiemalis)O lux beata Trinitas (hiemalis)
  11. 🔍 40% O quantum in CruceO quantum in Cruce
  12. 🔍 39% Virgo clemensVirgo clemens
  13. 🔍 37% Iste confessor (IIa)Iste confessor (IIa)
  14. 🔍 37% Iste Confessor (Conf. not Bishop) 8Iste Confessor (Conf. not Bishop) 8
  15. 🔍 37% Iste Confessor (Conf. Bishop) 3Iste Confessor (Conf. Bishop) 3
  16. 🔍 36% Iste Confessor (Conf non Pont in Duplicibus Minoribus)Iste Confessor (Conf non Pont in Duplicibus Minoribus)
  17. 🔍 36% Iste Confessorum Domini (in Dominicis)Iste Confessorum Domini (in Dominicis)
  18. 🔍 36% Iste Confessorum Domini (in Feriis tertiis)Iste Confessorum Domini (in Feriis tertiis)
  19. 🔍 36% Iste Confessor (Conf. Bishop)Iste Confessor (Conf. Bishop)
  20. 🔍 36% Iste Confessor (Conf. Bishop) (another chant) (2)Iste Confessor (Conf. Bishop) (another chant) (2)
  21. 🔍 36% Iste Confessor (Conf. Bishop) 4Iste Confessor (Conf. Bishop) 4
  22. 🔍 36% Iste Confessorum Domini (in Feriis secundis)Iste Confessorum Domini (in Feriis secundis)
  23. 🔍 36% Iste Confessor (Conf. Bishop) 1Iste Confessor (Conf. Bishop) 1
  24. 🔍 36% Iste Confessorum Domini (Stig. Francisci)Iste Confessorum Domini (Stig. Francisci)
  25. 🔍 36% Iste Confessor (Conf. Bishop) 2Iste Confessor (Conf. Bishop) 2
  26. 🔍 35% 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)
  27. 🔍 35% Iste Confessor (Conf. Bishop) (another chant)Iste Confessor (Conf. Bishop) (another chant)
  28. 🔍 35% Iste ConfessorIste Confessor
  29. 🔍 34% Iste Confessor Domini [S Martini]Iste Confessor Domini [S Martini]
  30. 🔍 33% Iste Confessor (Impr. Stigmatum)Iste Confessor (Impr. Stigmatum)
  31. 🔍 33% Iste Confessor (Conf. not Bishop)Iste Confessor (Conf. not Bishop)
  32. 🔍 33% Iste Confessor (Conf. not Bishop) 5Iste Confessor (Conf. not Bishop) 5
  33. 🔍 32% Iste Confessorum Domini (in Feriis quartis)Iste Confessorum Domini (in Feriis quartis)
  34. 🔍 32% Jesu Redemptor omnium (confes.)Jesu Redemptor omnium (confes.)
  35. 🔍 32% Ave Maris stellaAve Maris stella
  36. 🔍 31% Sapientia hujusSapientia hujus
  37. 🔍 31% Salvete Christi vulneraSalvete Christi vulnera
  38. 🔍 31% Benedicamus Domino (I)Benedicamus Domino (I)
  39. 🔍 31% Ave Maria... virgo serenaAve Maria... virgo serena
  40. 🔍 30% Passio DNJC secundum LucamPassio DNJC secundum Lucam
  41. 🔍 30% Deus tuorum militumDeus tuorum militum
  42. 🔍 30% Iste Confessorum Domini (in Feriis quintis)Iste Confessorum Domini (in Feriis quintis)
  43. 🔍 29% Deus tuorum militumDeus tuorum militum
  44. 🔍 29% Deus tuorum militumDeus tuorum militum
  45. 🔍 29% Crux fidelisCrux fidelis
  46. 🔍 29% Deus tuorum militumDeus tuorum militum
  47. 🔍 29% Ave maris stella (I)Ave maris stella (I)
  48. 🔍 29% Juste et sancteJuste et sancte
  49. 🔍 29% Iste Confessorum Domini (ad libitum)Iste Confessorum Domini (ad libitum)
  50. 🔍 29% Missus Gabriel de coelisMissus Gabriel de coelis
  51. 🔍 29% Passio Domini nostri Jesu Christi secundum Lucam - ANNO CPassio Domini nostri Jesu Christi secundum Lucam - ANNO C
  52. 🔍 29% Stephani victoria!Stephani victoria!
  53. 🔍 29% Iste Confessor (Conf. not Bishop) 7Iste Confessor (Conf. not Bishop) 7
  54. 🔍 28% Exsultet caelum laudibus (modus 4)Exsultet caelum laudibus (modus 4)
  55. 🔍 28% Optatus votis omniumOptatus votis omnium
  56. 🔍 28% Deus tuorum militumDeus tuorum militum
  57. 🔍 28% Caelitum Joseph decusCaelitum Joseph decus
  58. 🔍 28% Credo I.Credo I.
  59. 🔍 28% Iste Confessorum Domini (in Feriis sextis)Iste Confessorum Domini (in Feriis sextis)
  60. 🔍 28% Passio DNJC secundum MatthaeumPassio DNJC secundum Matthaeum
  61. 🔍 28% Iste Confessor (Conf. not Bishop) 6Iste Confessor (Conf. not Bishop) 6
  62. 🔍 28% Caelitum Joseph decusCaelitum Joseph decus
  63. 🔍 28% Iste Confessor (Conf. not Bishop) (another chant)Iste Confessor (Conf. not Bishop) (another chant)
  64. 🔍 28% Rex gloriose Martyrum (Alter tonus)Rex gloriose Martyrum (Alter tonus)
  65. 🔍 28% Rex gloriose Martyrum (another chant)Rex gloriose Martyrum (another chant)