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% AlleluiaAlleluia
  2. 🔍 51% Tonus 2Tonus 2
  3. 🔍 48% AlleluiaAlleluia
  4. 🔍 45% AlleluiaAlleluia
  5. 🔍 44% AlleluiaAlleluia
  6. 🔍 43% Canticum IsaiaeCanticum Isaiae
  7. 🔍 43% Psalmus 71Psalmus 71
  8. 🔍 41% Alleluia (mode 8)Alleluia (mode 8)
  9. 🔍 41% AlleluiaAlleluia
  10. 🔍 40% AlleluiaAlleluia
  11. 🔍 39% Alleluia (mode 8)Alleluia (mode 8)
  12. 🔍 39% Alleluia (T.P. ad Laudes)Alleluia (T.P. ad Laudes)
  13. 🔍 39% AlleluiaAlleluia
  14. 🔍 38% Alleluia (T.P. in III nocturno)Alleluia (T.P. in III nocturno)
  15. 🔍 38% Alleluia (T.P. in I nocturno)Alleluia (T.P. in I nocturno)
  16. 🔍 38% Exsurgat DeusExsurgat Deus
  17. 🔍 38% Alleluia (T.P. in II nocturno)Alleluia (T.P. in II nocturno)
  18. 🔍 38% Puer natus in BethlehemPuer natus in Bethlehem
  19. 🔍 38% Psalmus 24Psalmus 24
  20. 🔍 38% Omnes GentesOmnes Gentes
  21. 🔍 38% Alleluia alleluiaAlleluia alleluia
  22. 🔍 38% AlleluiaAlleluia
  23. 🔍 37% Psalmus 24Psalmus 24
  24. 🔍 37% Psalmus 127Psalmus 127
  25. 🔍 37% Psalmus 84 APsalmus 84 A
  26. 🔍 37% Alleluia (T.P. ad Vesperas)Alleluia (T.P. ad Vesperas)
  27. 🔍 37% AlleluiaAlleluia
  28. 🔍 37% Alleluia (T.P. Feria II ad Vesperas) Alleluia (T.P. Feria II ad Vesperas)
  29. 🔍 37% Alleluia alleluia alleluia alleluia (TP ad Sextam)Alleluia alleluia alleluia alleluia (TP ad Sextam)
  30. 🔍 37% Alleluia Omnes GentesAlleluia Omnes Gentes
  31. 🔍 36% AlleluiaAlleluia
  32. 🔍 36% Alleluia alleluia alleluia alleluia (TP ad Nonam)Alleluia alleluia alleluia alleluia (TP ad Nonam)
  33. 🔍 36% Alleluia alleluia alleluia alleluia (TP ad Sextam)Alleluia alleluia alleluia alleluia (TP ad Sextam)
  34. 🔍 36% Alleluia alleluia alleluia alleluia (TP ad Tertiam)Alleluia alleluia alleluia alleluia (TP ad Tertiam)
  35. 🔍 36% AlleluiaAlleluia
  36. 🔍 35% AlleluiaAlleluia
  37. 🔍 35% Alleluia alleluia alleluia (Dom. ad Laudes)Alleluia alleluia alleluia (Dom. ad Laudes)
  38. 🔍 35% Alleluia (ant.)Alleluia (ant.)
  39. 🔍 35% Alleluia (ant.)Alleluia (ant.)
  40. 🔍 35% Gloria PatriGloria Patri
  41. 🔍 35% Alleluia (T.P. ad Nonam)Alleluia (T.P. ad Nonam)
  42. 🔍 35% AlleluiaAlleluia
  43. 🔍 35% AlleluiaAlleluia
  44. 🔍 35% Alleluia (T.P. ad Tertiam)Alleluia (T.P. ad Tertiam)
  45. 🔍 34% Alleluia alleluia alleluia alleluia (TP ad Primam)Alleluia alleluia alleluia alleluia (TP ad Primam)
  46. 🔍 34% Salus et gloria et virtus (VIII)Salus et gloria et virtus (VIII)
  47. 🔍 34% Salus et gloria - mode IVSalus et gloria - mode IV
  48. 🔍 34% Alleluia Lapis revolutusAlleluia Lapis revolutus
  49. 🔍 34% Alleluia alleluia alleluia (Dominica ad Primam)Alleluia alleluia alleluia (Dominica ad Primam)
  50. 🔍 34% Alleluia. (Sund. P. T. at Lauds I) Alleluia. (Sund. P. T. at Lauds I)
  51. 🔍 33% Psalmus alleluiaticus E *Psalmus alleluiaticus E *
  52. 🔍 33% Ite, missa est, alleluia, alleluiaIte, missa est, alleluia, alleluia
  53. 🔍 33% Alleluia. (Thursday P. T. at Lauds II) Alleluia. (Thursday P. T. at Lauds II)
  54. 🔍 33% Alleluia Fer. V T.P. IAlleluia Fer. V T.P. I
  55. 🔍 33% Alleluia Fer. III T.P. IAlleluia Fer. III T.P. I
  56. 🔍 33% Alleluia Fer. VI T.P. IAlleluia Fer. VI T.P. I
  57. 🔍 33% Alleluia (T. P. ad Tertiam)Alleluia (T. P. ad Tertiam)
  58. 🔍 33% Alleluia Fer. IV T.P. IAlleluia Fer. IV T.P. I
  59. 🔍 33% Alleluia Fer. II T.P. IIAlleluia Fer. II T.P. II
  60. 🔍 32% Alleluia Fer. VI T.P. IIAlleluia Fer. VI T.P. II
  61. 🔍 32% AlleluiaAlleluia
  62. 🔍 32% Alleluia Fer. IV T.P. IIAlleluia Fer. IV T.P. II
  63. 🔍 32% Toni Evangelii CToni Evangelii C
  64. 🔍 32% Alleluia alleluia (Dom. ad Laudes)Alleluia alleluia (Dom. ad Laudes)
  65. 🔍 32% Alleluia Fer. II T.P. IAlleluia Fer. II T.P. I