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% Rector potens (Festis Minoribus)Rector potens (Festis Minoribus)
  2. 🔍 71% Rector potens(Solemnitatibus)Rector potens(Solemnitatibus)
  3. 🔍 61% Rector potens (In Festis Minoribus)Rector potens (In Festis Minoribus)
  4. 🔍 47% Rector potens(In Festis Majoribus)Rector potens(In Festis Majoribus)
  5. 🔍 46% Rector potens Fer.Rector potens Fer.
  6. 🔍 45% Rector potens Fer.Rector potens Fer.
  7. 🔍 44% Rector potens verax Deus (2)Rector potens verax Deus (2)
  8. 🔍 44% Rector potens verax deus (in memoriis)Rector potens verax deus (in memoriis)
  9. 🔍 42% Rector potens (in Feriis per Annum)Rector potens (in Feriis per Annum)
  10. 🔍 42% Rector potens verax Deus (1)Rector potens verax Deus (1)
  11. 🔍 42% Rector potens (Dom.)Rector potens (Dom.)
  12. 🔍 39% Rector Potens (In Nativitate Domini)Rector Potens (In Nativitate Domini)
  13. 🔍 39% Rector potens verax Deus (3)Rector potens verax Deus (3)
  14. 🔍 38% Rector potens (In Tempore Paschali)Rector potens (In Tempore Paschali)
  15. 🔍 38% Rerum Deus (In Festis Minoribus)Rerum Deus (In Festis Minoribus)
  16. 🔍 38% Rector potens verax Deus (4)Rector potens verax Deus (4)
  17. 🔍 37% Rector potens (In Tempore Ascensionis)Rector potens (In Tempore Ascensionis)
  18. 🔍 36% Jam lucis orto sidere (Festis Minoribus per annum)Jam lucis orto sidere (Festis Minoribus per annum)
  19. 🔍 36% Rector potens (In Festis Majoribus)Rector potens (In Festis Majoribus)
  20. 🔍 35% Rector potens (Tempus Nativitatis)Rector potens (Tempus Nativitatis)
  21. 🔍 35% Rector potens (In Festis BMV)Rector potens (In Festis BMV)
  22. 🔍 34% Rector potens (In Dominicis per Annum)Rector potens (In Dominicis per Annum)
  23. 🔍 34% Rector potens (In Epiphania Domini)Rector potens (In Epiphania Domini)
  24. 🔍 33% Rector potens (In Festo Pentecostes)Rector potens (In Festo Pentecostes)
  25. 🔍 32% Rector potens (In Festo Christi Regis)Rector potens (In Festo Christi Regis)
  26. 🔍 32% Rector Potens (In Feriis per annum et Festis Simplicibus)Rector Potens (In Feriis per annum et Festis Simplicibus)
  27. 🔍 32% Rector potens (In Tempore Passionis)Rector potens (In Tempore Passionis)
  28. 🔍 32% Nunc Sancte nobis (in Festis Minoribus)Nunc Sancte nobis (in Festis Minoribus)
  29. 🔍 31% Rector potens (in Festo Septem Dolorum BMV)Rector potens (in Festo Septem Dolorum BMV)
  30. 🔍 30% Rector potens (In Festo S. Cordis Jesu)Rector potens (In Festo S. Cordis Jesu)
  31. 🔍 30% Rector potens (In Tempore Paschali)Rector potens (In Tempore Paschali)
  32. 🔍 30% Rector potens (In Quadragesima)Rector potens (In Quadragesima)
  33. 🔍 30% Rector potens (In Dominicis per Annum)Rector potens (In Dominicis per Annum)
  34. 🔍 30% Rector potens verax Deus (in Dom. et Minor. Festis)Rector potens verax Deus (in Dom. et Minor. Festis)
  35. 🔍 29% Rerum Deus tenax vigor (in memoriis)Rerum Deus tenax vigor (in memoriis)
  36. 🔍 28% Rector potens (In Adventu)Rector potens (In Adventu)
  37. 🔍 28% Rector potens (In Adventu)Rector potens (In Adventu)
  38. 🔍 28% Dicamus laudes (In memoriis)Dicamus laudes (In memoriis)
  39. 🔍 28% Rector potens verax Deus (In Festis)Rector potens verax Deus (In Festis)
  40. 🔍 28% Rector potens (in Solemnitatibus)Rector potens (in Solemnitatibus)
  41. 🔍 28% Rector potens (In Festis majoribus)Rector potens (In Festis majoribus)
  42. 🔍 28% Rector potens verax Deus (In Feriis per annum)Rector potens verax Deus (In Feriis per annum)
  43. 🔍 28% Rector potens (dom.)Rector potens (dom.)
  44. 🔍 28% Rector Potens Verax Deus Hymn 1, Pg 10Rector Potens Verax Deus Hymn 1, Pg 10
  45. 🔍 27% Rector potens verax Deus (In Fer. et Fest. Simpl.)Rector potens verax Deus (In Fer. et Fest. Simpl.)
  46. 🔍 27% Rector potens verax Deus (In tempore Epiphaniae)Rector potens verax Deus (In tempore Epiphaniae)
  47. 🔍 27% Rector potens (In Pentecoste)Rector potens (In Pentecoste)
  48. 🔍 27% Rector potens (In Adventu)Rector potens (In Adventu)
  49. 🔍 27% Rector potens (In Festo Corporis Christi)Rector potens (In Festo Corporis Christi)
  50. 🔍 27% Rector potens verax Deus (In Pentecoste)Rector potens verax Deus (In Pentecoste)
  51. 🔍 27% Rector PotensRector Potens
  52. 🔍 27% Certum tenentes (In memoriis)Certum tenentes (In memoriis)
  53. 🔍 26% Rector potens verax Deus (In Quadragesima)Rector potens verax Deus (In Quadragesima)
  54. 🔍 26% Rector potens verax Deus (In festis BMV)Rector potens verax Deus (In festis BMV)
  55. 🔍 26% Rector potens verax Deus (In tempore Paschali)Rector potens verax Deus (In tempore Paschali)
  56. 🔍 26% Rector potens verax Deus (In Major. Festis)Rector potens verax Deus (In Major. Festis)
  57. 🔍 26% Ternis horarum (In memoriis)Ternis horarum (In memoriis)
  58. 🔍 25% Rector potens verax Deus (In tempore Passionis)Rector potens verax Deus (In tempore Passionis)
  59. 🔍 24% Nunc Sancte (in Memoriis)Nunc Sancte (in Memoriis)
  60. 🔍 24% Rector potens verax Deus (In tempore Nativitatis)Rector potens verax Deus (In tempore Nativitatis)
  61. 🔍 24% Rector potens (soll.)Rector potens (soll.)
  62. 🔍 24% Rector potens verax Deus (Septem Dolorum)Rector potens verax Deus (Septem Dolorum)
  63. 🔍 23% Rector Potens Verax Deus Hymn 2, Pg 10Rector Potens Verax Deus Hymn 2, Pg 10
  64. 🔍 23% Rector potens (Adv.)Rector potens (Adv.)
  65. 🔍 22% Te lucis ante terminum (In Festis Minoribus)Te lucis ante terminum (In Festis Minoribus)