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: 2025-12-20. 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% Post dies octoPost dies octo
  2. 🔍 74% Post dies octoPost dies octo
  3. 🔍 74% Post dies octoPost dies octo
  4. 🔍 68% Post dies octo januisPost dies octo januis
  5. 🔍 65% Post dies octoPost dies octo
  6. 🔍 38% Post dies octoPost dies octo
  7. 🔍 35% Alleluia (T.P. in II nocturno)Alleluia (T.P. in II nocturno)
  8. 🔍 32% AlleluiaAlleluia
  9. 🔍 32% Alleluia (mode 8)Alleluia (mode 8)
  10. 🔍 32% Alleluia Lapis revolutusAlleluia Lapis revolutus
  11. 🔍 31% Alleluia (T.P. ad Laudes)Alleluia (T.P. ad Laudes)
  12. 🔍 31% Alleluia (T.P. in III nocturno)Alleluia (T.P. in III nocturno)
  13. 🔍 31% Stetit JesusStetit Jesus
  14. 🔍 30% Alleluia (mode 8)Alleluia (mode 8)
  15. 🔍 30% Pax VobisPax Vobis
  16. 🔍 30% Alleluia Omnes GentesAlleluia Omnes Gentes
  17. 🔍 30% Alleluia (T.P. ad Vesperas)Alleluia (T.P. ad Vesperas)
  18. 🔍 30% Alleluia (T.P. in I nocturno)Alleluia (T.P. in I nocturno)
  19. 🔍 30% Alleluia (T.P. Feria II ad Vesperas) Alleluia (T.P. Feria II ad Vesperas)
  20. 🔍 30% Stetit JesusStetit Jesus
  21. 🔍 30% Alleluia (T.P. ad Nonam)Alleluia (T.P. ad Nonam)
  22. 🔍 29% Alleluia. (Sund. P. T. at Lauds I) Alleluia. (Sund. P. T. at Lauds I)
  23. 🔍 28% Alleluia (T.P. ad Tertiam)Alleluia (T.P. ad Tertiam)
  24. 🔍 28% Alleluia (ant.)Alleluia (ant.)
  25. 🔍 28% Alleluia (ant.)Alleluia (ant.)
  26. 🔍 28% Alleluia Fer. II T.P. IAlleluia Fer. II T.P. I
  27. 🔍 28% Stetit Jesus in medioStetit Jesus in medio
  28. 🔍 28% Surrexit Dominus vere (Resp. Br.)Surrexit Dominus vere (Resp. Br.)
  29. 🔍 28% Puer natus in BethlehemPuer natus in Bethlehem
  30. 🔍 27% Alleluia audiviAlleluia audivi
  31. 🔍 27% Gustate et videteGustate et videte
  32. 🔍 27% Alleluia Fer. II T.P. IIAlleluia Fer. II T.P. II
  33. 🔍 26% Alleluia Fer. VI T.P. IIAlleluia Fer. VI T.P. II
  34. 🔍 26% Alleluia Sabb. T.P. IAlleluia Sabb. T.P. I
  35. 🔍 26% Omnes GentesOmnes Gentes
  36. 🔍 26% Post dies octoPost dies octo
  37. 🔍 26% Alleluia (Feria secunda ad primam)Alleluia (Feria secunda ad primam)
  38. 🔍 26% Alleluia Fer. IV T.P. IIAlleluia Fer. IV T.P. II
  39. 🔍 25% Alleluia Fer. V T.P. IIAlleluia Fer. V T.P. II
  40. 🔍 25% Alleluia (T.P. ad Sextam)Alleluia (T.P. ad Sextam)
  41. 🔍 25% Alleluia Fer. III T.P. IIAlleluia Fer. III T.P. II
  42. 🔍 25% Alleluia Fer. V T.P. IAlleluia Fer. V T.P. I
  43. 🔍 25% Alleluia. (Sat. P. T. at Lauds)Alleluia. (Sat. P. T. at Lauds)
  44. 🔍 25% Alleluia (Sund. T.P. at Terce)Alleluia (Sund. T.P. at Terce)
  45. 🔍 25% Alleluia (T. P. ad Sextam)Alleluia (T. P. ad Sextam)
  46. 🔍 25% AlleluiaAlleluia
  47. 🔍 25% Cum esset seroCum esset sero
  48. 🔍 25% In manus tuas (tempore Paschali)In manus tuas (tempore Paschali)
  49. 🔍 25% Alleluia resurrexit DominusAlleluia resurrexit Dominus
  50. 🔍 25% ResurrexitResurrexit
  51. 🔍 25% Alleluia Fer. IV T.P. IAlleluia Fer. IV T.P. I
  52. 🔍 24% Alleluia (T. P. Vesp. Fer. II.)Alleluia (T. P. Vesp. Fer. II.)
  53. 🔍 24% Alleluia Dom. Compl. T.P. IAlleluia Dom. Compl. T.P. I
  54. 🔍 24% Alleluia (Feria Secunda ad Sextam T.P.)Alleluia (Feria Secunda ad Sextam T.P.)
  55. 🔍 24% Alleluia (Sabb. T.P.) (II)Alleluia (Sabb. T.P.) (II)
  56. 🔍 24% Alleluia (T. P. ad Tertiam)Alleluia (T. P. ad Tertiam)
  57. 🔍 24% Alleluia (T. P. ad Primam)Alleluia (T. P. ad Primam)
  58. 🔍 24% Alleluia (Dominica per Annum ad Laudes)Alleluia (Dominica per Annum ad Laudes)
  59. 🔍 24% Alleluia Fer. VI T.P. IAlleluia Fer. VI T.P. I
  60. 🔍 24% Alleluia. (Saturday P. T. at Lauds II)Alleluia. (Saturday P. T. at Lauds II)
  61. 🔍 24% Pax vobis ego sumPax vobis ego sum
  62. 🔍 24% Confirma hoc DeusConfirma hoc Deus
  63. 🔍 24% Post dies octoPost dies octo
  64. 🔍 24% Alleluia. (Monday P. T. at Lauds)Alleluia. (Monday P. T. at Lauds)
  65. 🔍 24% Alleluia (Dom. Sext. T.P.)Alleluia (Dom. Sext. T.P.)