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% Saulus qui et PaulusSaulus qui et Paulus
  2. 🔍 64% Saulus qui et PaulusSaulus qui et Paulus
  3. 🔍 42% Saulus qui et Paulus magnusSaulus qui et Paulus magnus
  4. 🔍 36% Ingressus PaulusIngressus Paulus
  5. 🔍 33% Paulus... JulianoPaulus... Juliano
  6. 🔍 28% In die magnoIn die magno
  7. 🔍 25% Factum est in unaFactum est in una
  8. 🔍 23% Magnus sanctus PaulusMagnus sanctus Paulus
  9. 🔍 23% AndreasAndreas
  10. 🔍 23% In humilitateIn humilitate
  11. 🔍 23% Angelus autem DominiAngelus autem Domini
  12. 🔍 22% In die magno festivitatisIn die magno festivitatis
  13. 🔍 22% Paulus et Joannes dixerunt JulianoPaulus et Joannes dixerunt Juliano
  14. 🔍 21% Pauper sumPauper sum
  15. 🔍 21% Confundantur qui meConfundantur qui me
  16. 🔍 21% Petrus ApostolusPetrus Apostolus
  17. 🔍 21% Angelus Domini descendebatAngelus Domini descendebat
  18. 🔍 21% Exsultet iam angelica (brevior)Exsultet iam angelica (brevior)
  19. 🔍 21% Praefatio solemnis de Epiphania DominiPraefatio solemnis de Epiphania Domini
  20. 🔍 21% Petrus Apostolus et PaulusPetrus Apostolus et Paulus
  21. 🔍 21% In die magnoIn die magno
  22. 🔍 21% Confundantur omnesConfundantur omnes
  23. 🔍 21% In die magnoIn die magno
  24. 🔍 21% Exsultet iam angelicaExsultet iam angelica
  25. 🔍 21% Magnus sanctus PaulusMagnus sanctus Paulus
  26. 🔍 21% Fecit OrdiniFecit Ordini
  27. 🔍 21% Quoniam vidiQuoniam vidi
  28. 🔍 21% Praefatio solemnis de QuadragesimaPraefatio solemnis de Quadragesima
  29. 🔍 20% In spirituIn spiritu
  30. 🔍 20% Praefatio Paschalis IIPraefatio Paschalis II
  31. 🔍 20% Statuit eaStatuit ea
  32. 🔍 20% Prex Eucharistica IVPrex Eucharistica IV
  33. 🔍 20% Praefatio solemnis de sancto Ioseph Sponso B. M. V.Praefatio solemnis de sancto Ioseph Sponso B. M. V.
  34. 🔍 20% Zachaee festinansZachaee festinans
  35. 🔍 20% Et ecce terrae motusEt ecce terrae motus
  36. 🔍 20% Passio DNJC secundum JoannemPassio DNJC secundum Joannem
  37. 🔍 20% Virgo gloriosaVirgo gloriosa
  38. 🔍 20% Exsultet jam AngelicaExsultet jam Angelica
  39. 🔍 20% Stabat mater 1Stabat mater 1
  40. 🔍 20% Maria autemMaria autem
  41. 🔍 20% Praefatio de D. N. Iesu Christo universorum RegePraefatio de D. N. Iesu Christo universorum Rege
  42. 🔍 20% Paulus et Joannes... JulianoPaulus et Joannes... Juliano
  43. 🔍 20% Praefatio ferialis de sancto Ioseph Sponso B. M. V.Praefatio ferialis de sancto Ioseph Sponso B. M. V.
  44. 🔍 20% Concussum est mare (t.p.)Concussum est mare (t.p.)
  45. 🔍 20% Paulus... TerentianumPaulus... Terentianum
  46. 🔍 20% Salus et gloriaSalus et gloria
  47. 🔍 20% Sancte Paule ApostoleSancte Paule Apostole
  48. 🔍 19% Benedicta et venerabilisBenedicta et venerabilis
  49. 🔍 19% Respondens autem AngelusRespondens autem Angelus
  50. 🔍 19% Sancte Paule ApostoleSancte Paule Apostole
  51. 🔍 19% Joannes et Paulus agnoscentesJoannes et Paulus agnoscentes
  52. 🔍 19% Volebat enimVolebat enim
  53. 🔍 19% Praefatio solemnis paschalisPraefatio solemnis paschalis
  54. 🔍 19% Caecus sedebatCaecus sedebat
  55. 🔍 19% Domine magnusDomine magnus
  56. 🔍 19% O beatum pontificemO beatum pontificem
  57. 🔍 19% Decantabat populusDecantabat populus
  58. 🔍 19% Praefatio solemnior de sancto Ioseph Sponso B. M. V.Praefatio solemnior de sancto Ioseph Sponso B. M. V.
  59. 🔍 19% Rerum omniumRerum omnium
  60. 🔍 19% Joannes et Paulus dixeruntJoannes et Paulus dixerunt
  61. 🔍 19% Angelus... nuntiavitAngelus... nuntiavit
  62. 🔍 19% Descendit JesusDescendit Jesus
  63. 🔍 19% Post mortemPost mortem
  64. 🔍 19% Praefatio de Dominicis per annum IIPraefatio de Dominicis per annum II
  65. 🔍 19% Benedictum nomenBenedictum nomen