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% Postulavi Patrem meumPostulavi Patrem meum
  2. 🔍 72% Postulavi PatremPostulavi Patrem
  3. 🔍 69% Postulavi Patrem meumPostulavi Patrem meum
  4. 🔍 58% Alleluia (T.P. in I nocturno)Alleluia (T.P. in I nocturno)
  5. 🔍 52% Alleluia (mode 8)Alleluia (mode 8)
  6. 🔍 51% Alleluia (T.P. in III nocturno)Alleluia (T.P. in III nocturno)
  7. 🔍 51% Alleluia Omnes GentesAlleluia Omnes Gentes
  8. 🔍 49% Alleluia (T.P. ad Laudes)Alleluia (T.P. ad Laudes)
  9. 🔍 49% Alleluia (T.P. in II nocturno)Alleluia (T.P. in II nocturno)
  10. 🔍 49% Alleluia (mode 8)Alleluia (mode 8)
  11. 🔍 49% Alleluia (T.P. ad Vesperas)Alleluia (T.P. ad Vesperas)
  12. 🔍 48% Omnes GentesOmnes Gentes
  13. 🔍 47% Alleluia (T.P. Feria II ad Vesperas) Alleluia (T.P. Feria II ad Vesperas)
  14. 🔍 46% Alleluia Lapis revolutusAlleluia Lapis revolutus
  15. 🔍 46% AlleluiaAlleluia
  16. 🔍 46% Alleluia (T.P. ad Tertiam)Alleluia (T.P. ad Tertiam)
  17. 🔍 46% Alleluia (T.P. ad Nonam)Alleluia (T.P. ad Nonam)
  18. 🔍 44% Puer natus in BethlehemPuer natus in Bethlehem
  19. 🔍 43% Alleluia. (Sund. P. T. at Lauds I) Alleluia. (Sund. P. T. at Lauds I)
  20. 🔍 43% Gustate et videteGustate et videte
  21. 🔍 43% Alleluia (ant.)Alleluia (ant.)
  22. 🔍 43% Alleluia (ant.)Alleluia (ant.)
  23. 🔍 41% Alleluia Fer. III T.P. IAlleluia Fer. III T.P. I
  24. 🔍 41% Alleluia (T. P. ad Tertiam)Alleluia (T. P. ad Tertiam)
  25. 🔍 41% Alleluia Fer. VI T.P. IAlleluia Fer. VI T.P. I
  26. 🔍 41% Alleluia (T.P. ad Sextam)Alleluia (T.P. ad Sextam)
  27. 🔍 41% AlleluiaAlleluia
  28. 🔍 40% Alleluia Fer. IV T.P. IIAlleluia Fer. IV T.P. II
  29. 🔍 40% Alleluia Fer. IV T.P. IAlleluia Fer. IV T.P. I
  30. 🔍 40% Alleluia (Feria secunda ad primam)Alleluia (Feria secunda ad primam)
  31. 🔍 40% Alleluia Fer. II T.P. IIAlleluia Fer. II T.P. II
  32. 🔍 40% Alleluia (T.P. Invitatorium)Alleluia (T.P. Invitatorium)
  33. 🔍 40% Alleluia Fer. V T.P. IAlleluia Fer. V T.P. I
  34. 🔍 40% Alleluia Fer. II T.P. IAlleluia Fer. II T.P. I
  35. 🔍 39% Alleluia Fer. VI T.P. IIAlleluia Fer. VI T.P. II
  36. 🔍 39% Exsurgat DeusExsurgat Deus
  37. 🔍 39% Alleluia Dom. Compl. T.P. IAlleluia Dom. Compl. T.P. I
  38. 🔍 39% Alleluia Fer. V T.P. IIAlleluia Fer. V T.P. II
  39. 🔍 39% Alleluia (T. P. Laud. Fer. III.)Alleluia (T. P. Laud. Fer. III.)
  40. 🔍 38% Alleluia (Sabb. T.P.) (II)Alleluia (Sabb. T.P.) (II)
  41. 🔍 38% Alleluia (T. P. Vesp. Fer. II.)Alleluia (T. P. Vesp. Fer. II.)
  42. 🔍 38% Alleluia (T. P. ad Primam)Alleluia (T. P. ad Primam)
  43. 🔍 38% Alleluia (Sund. T.P. at Terce)Alleluia (Sund. T.P. at Terce)
  44. 🔍 38% Alleluia alleluiaAlleluia alleluia
  45. 🔍 38% Alleluia. Dom. LaudAlleluia. Dom. Laud
  46. 🔍 38% Alleluia (Dominica per Annum ad Laudes)Alleluia (Dominica per Annum ad Laudes)
  47. 🔍 38% Alleluia (Feria Secunda ad Nonam T.P.)Alleluia (Feria Secunda ad Nonam T.P.)
  48. 🔍 38% Salus et gloria - mode IVSalus et gloria - mode IV
  49. 🔍 38% Alleluia Fer. III T.P. IIAlleluia Fer. III T.P. II
  50. 🔍 37% Alleluia (T. P. Vesp. Fer. IV.)Alleluia (T. P. Vesp. Fer. IV.)
  51. 🔍 37% Alleluia (T. P. Laud. Fer. IV.)Alleluia (T. P. Laud. Fer. IV.)
  52. 🔍 37% Alleluia (Dom. Tert. T.P.)Alleluia (Dom. Tert. T.P.)
  53. 🔍 37% AlleluiaAlleluia
  54. 🔍 37% Benedicamus PatremBenedicamus Patrem
  55. 🔍 37% AccipiteAccipite
  56. 🔍 37% Alleluia (Per Hebdomadam ad Nonam T.P.)Alleluia (Per Hebdomadam ad Nonam T.P.)
  57. 🔍 37% AccipiteAccipite
  58. 🔍 37% Alleluia (T. P. Laud. Fer. V.)Alleluia (T. P. Laud. Fer. V.)
  59. 🔍 37% ModicumModicum
  60. 🔍 37% Alleluia (T. P. Laud. Fer. VI.)Alleluia (T. P. Laud. Fer. VI.)
  61. 🔍 37% Alleluia LaudateAlleluia Laudate
  62. 🔍 36% Alleluia (T. P. Vesp. Fer. VI.)Alleluia (T. P. Vesp. Fer. VI.)
  63. 🔍 36% Alleluia alleluia alleluia alleluia (TP ad Sextam)Alleluia alleluia alleluia alleluia (TP ad Sextam)
  64. 🔍 36% Alleluia (Dom. Non. T.P.)Alleluia (Dom. Non. T.P.)
  65. 🔍 36% Salus et gloria et virtus (VIII)Salus et gloria et virtus (VIII)