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% Rector Potens Verax Deus Hymn 2, Pg 10Rector Potens Verax Deus Hymn 2, Pg 10
  2. 🔍 79% Rector Potens Verax Deus Hymn 1, Pg 10Rector Potens Verax Deus Hymn 1, Pg 10
  3. 🔍 52% Rerum Deus Tenax VigorRerum Deus Tenax Vigor
  4. 🔍 49% Lucis Creator OptimeLucis Creator Optime
  5. 🔍 39% Nunc sancte nobis SpiritusNunc sancte nobis Spiritus
  6. 🔍 35% Rector potens verax Deus (3)Rector potens verax Deus (3)
  7. 🔍 35% Rector potens verax Deus (2)Rector potens verax Deus (2)
  8. 🔍 33% Rector potens verax Deus (1)Rector potens verax Deus (1)
  9. 🔍 31% Rector potens verax Deus (4)Rector potens verax Deus (4)
  10. 🔍 26% Rector potens verax Deus (In Feriis per annum)Rector potens verax Deus (In Feriis per annum)
  11. 🔍 25% Iubilate Deo universa terraIubilate Deo universa terra
  12. 🔍 25% Rector potens Fer.Rector potens  Fer.
  13. 🔍 24% Rector potens Fer.Rector potens  Fer.
  14. 🔍 23% Rector potens (Dom.)Rector potens (Dom.)
  15. 🔍 23% Rector potens (Festis Minoribus)Rector potens (Festis Minoribus)
  16. 🔍 23% Rector potens(Solemnitatibus)Rector potens(Solemnitatibus)
  17. 🔍 22% Rector potens (dom.)Rector potens (dom.)
  18. 🔍 22% Vox Clara Ecce IntonatVox Clara Ecce Intonat
  19. 🔍 22% Rector potens verax Deus (In Fer. et Fest. Simpl.)Rector potens verax Deus (In Fer. et Fest. Simpl.)
  20. 🔍 21% Rector potens verax Deus (in Dom. et Minor. Festis)Rector potens verax Deus (in Dom. et Minor. Festis)
  21. 🔍 21% Rector potens verax Deus (In tempore Epiphaniae)Rector potens verax Deus (In tempore Epiphaniae)
  22. 🔍 21% Rector potens verax Deus (In Quadragesima)Rector potens verax Deus (In Quadragesima)
  23. 🔍 20% Rector potens verax Deus (In tempore Paschali)Rector potens verax Deus (In tempore Paschali)
  24. 🔍 20% Rector potens verax Deus (In tempore Passionis)Rector potens verax Deus (In tempore Passionis)
  25. 🔍 20% Rector potens verax Deus (In Pentecoste)Rector potens verax Deus (In Pentecoste)
  26. 🔍 20% Rector potens verax Deus (In tempore Nativitatis)Rector potens verax Deus (In tempore Nativitatis)
  27. 🔍 19% Rector potens verax Deus (Septem Dolorum)Rector potens verax Deus (Septem Dolorum)
  28. 🔍 18% Rector potens verax Deus (In Festis)Rector potens verax Deus (In Festis)
  29. 🔍 18% Rector Potens (In Nativitate Domini)Rector Potens (In Nativitate Domini)
  30. 🔍 18% Rector potens (In Adventu)Rector potens (In Adventu)
  31. 🔍 18% Rector Potens (In Feriis per annum et Festis Simplicibus)Rector Potens (In Feriis per annum et Festis Simplicibus)
  32. 🔍 18% Rector potens (in Feriis per Annum)Rector potens (in Feriis per Annum)
  33. 🔍 17% Rector PotensRector Potens
  34. 🔍 17% Rector potens verax deus (in memoriis)Rector potens verax deus (in memoriis)
  35. 🔍 17% Rector potens (Tempus Nativitatis)Rector potens (Tempus Nativitatis)
  36. 🔍 17% Rector potens verax Deus (In Major. Festis)Rector potens verax Deus (In Major. Festis)
  37. 🔍 16% Rector potens (In Tempore Paschali)Rector potens (In Tempore Paschali)
  38. 🔍 16% Rector potens (In Tempore Ascensionis)Rector potens (In Tempore Ascensionis)
  39. 🔍 16% Rector potens (In Dominicis per Annum)Rector potens (In Dominicis per Annum)
  40. 🔍 16% Rector potens (In Tempore Paschali)Rector potens (In Tempore Paschali)
  41. 🔍 16% Rector potens (In Dominicis per Annum)Rector potens (In Dominicis per Annum)
  42. 🔍 16% Rector potens verax Deus (In Ascensione)Rector potens verax Deus (In Ascensione)
  43. 🔍 16% Rector potens (In Pentecoste)Rector potens (In Pentecoste)
  44. 🔍 15% Rector potens verax Deus (In Transfiguratione)Rector potens verax Deus (In Transfiguratione)
  45. 🔍 15% Rector potens (In Epiphania Domini)Rector potens (In Epiphania Domini)
  46. 🔍 15% Rector potens(In Festis Majoribus)Rector potens(In Festis Majoribus)
  47. 🔍 15% Rector potens (In Festis Majoribus)Rector potens (In Festis Majoribus)
  48. 🔍 15% Rector potens (In Tempore Passionis)Rector potens (In Tempore Passionis)
  49. 🔍 15% Rector potens verax Deus (In festis BMV)Rector potens verax Deus (In festis BMV)
  50. 🔍 14% Rector potens (In Festo Corporis Christi)Rector potens (In Festo Corporis Christi)
  51. 🔍 14% Rector potens (in Festo Septem Dolorum BMV)Rector potens (in Festo Septem Dolorum BMV)
  52. 🔍 14% Rector potens (In Festo Pentecostes)Rector potens (In Festo Pentecostes)
  53. 🔍 14% Rector potens (In Festis Minoribus)Rector potens (In Festis Minoribus)
  54. 🔍 14% Rector potens (In Festo Christi Regis)Rector potens (In Festo Christi Regis)
  55. 🔍 13% Rector potens (In Festo S. Cordis Jesu)Rector potens (In Festo S. Cordis Jesu)
  56. 🔍 13% Rector potens (In Quadragesima)Rector potens (In Quadragesima)
  57. 🔍 13% Aeterne rerum ConditorAeterne rerum Conditor
  58. 🔍 13% Potens es DominePotens es Domine
  59. 🔍 13% Rector potens (In Adventu)Rector potens (In Adventu)
  60. 🔍 13% Rector potens (In Adventu)Rector potens (In Adventu)
  61. 🔍 13% Rector potens (In Ascensione)Rector potens (In Ascensione)
  62. 🔍 13% Rector potens (In Festis majoribus)Rector potens (In Festis majoribus)
  63. 🔍 13% Rector potens (In Festis BMV)Rector potens (In Festis BMV)
  64. 🔍 13% Rector potens (Adv.)Rector potens (Adv.)
  65. 🔍 13% Deus Creator omniumDeus Creator omnium