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 πŸ” to find similarities to the given chant.

  1. πŸ” 100% Nox atra rerum contegitNox atra rerum contegit
  2. πŸ” 59% Nox atra rerumNox atra rerum
  3. πŸ” 58% Nox atra rerum (+rhythmic signs)Nox atra rerum (+rhythmic signs)
  4. πŸ” 51% Somno refectis artubusSomno refectis artubus
  5. πŸ” 47% Rerum Creator optimeRerum Creator optime
  6. πŸ” 44% Tu Trinitatis unitasTu Trinitatis unitas
  7. πŸ” 39% Summae Parens clementiaeSummae Parens clementiae
  8. πŸ” 38% Consors paterni luminisConsors paterni luminis
  9. πŸ” 36% Credo ICredo I
  10. πŸ” 36% Credo I (forma ordinaria)Credo I (forma ordinaria)
  11. πŸ” 35% Credo ICredo I
  12. πŸ” 35% Adesto rerum conditorAdesto rerum conditor
  13. πŸ” 34% Somno refectisSomno refectis
  14. πŸ” 34% Credo ICredo I
  15. πŸ” 33% Exsultet iam angelicaExsultet iam angelica
  16. πŸ” 33% Primo dierum omniumPrimo dierum omnium
  17. πŸ” 33% Nox et tenebraeNox et tenebrae
  18. πŸ” 33% Rex summe regum (Prop. GalliΓ¦)Rex summe regum (Prop. GalliΓ¦)
  19. πŸ” 33% Rector potens (in Feriis per Annum)Rector potens (in Feriis per Annum)
  20. πŸ” 33% Te lucis ante terminum (In Fer. et Fest. Simpl.)Te lucis ante terminum (In Fer. et Fest. Simpl.)
  21. πŸ” 32% Te lucis ante terminum (in dominicis per annum)Te lucis ante terminum (in dominicis per annum)
  22. πŸ” 32% Rector Potens (In Feriis per annum et Festis Simplicibus)Rector Potens (In Feriis per annum et Festis Simplicibus)
  23. πŸ” 32% Rector potens verax Deus (In Quadragesima)Rector potens verax Deus (In Quadragesima)
  24. πŸ” 32% Te lucis ante terminum (In Quadragesima)Te lucis ante terminum (In Quadragesima)
  25. πŸ” 32% Somno refectis (+rhythmic signs)Somno refectis (+rhythmic signs)
  26. πŸ” 32% Rerum Deus (In Feriis per Annum)Rerum Deus (In Feriis per Annum)
  27. πŸ” 31% Te lucis ante terminum (In tempore Passionis)Te lucis ante terminum (In tempore Passionis)
  28. πŸ” 31% Rerum Deus (In Nativitate Domini)Rerum Deus (In Nativitate Domini)
  29. πŸ” 31% Te lucis ante terminum (In Dom. et Minor. Festis per Annum)Te lucis ante terminum (In Dom. et Minor. Festis per Annum)
  30. πŸ” 31% Te lucis ante terminum (Lent)Te lucis ante terminum (Lent)
  31. πŸ” 31% Ave Regis AngelorumAve Regis Angelorum
  32. πŸ” 31% Ave Maris StellaAve Maris Stella
  33. πŸ” 31% Te lucis ante terminum (In Tempore Paschali)Te lucis ante terminum (In Tempore Paschali)
  34. πŸ” 31% Rerum Deus tenax vigor (In Quadragesima)Rerum Deus tenax vigor (In Quadragesima)
  35. πŸ” 31% Rector potens (In Adventu)Rector potens (In Adventu)
  36. πŸ” 31% Rector potens (In Quadragesima)Rector potens (In Quadragesima)
  37. πŸ” 31% Primo die quo TrinitasPrimo die quo Trinitas
  38. πŸ” 30% Te lucis ante terminum (In Epiphania Domini)Te lucis ante terminum (In Epiphania Domini)
  39. πŸ” 30% Amoris sensus erigeAmoris sensus erige
  40. πŸ” 30% Nox et tenebrae (in Hieme)Nox et tenebrae (in Hieme)
  41. πŸ” 30% Rerum Deus (In Adventu)Rerum Deus (In Adventu)
  42. πŸ” 30% Rerum Deus (In Adventu)Rerum Deus (In Adventu)
  43. πŸ” 30% Immense caeli Conditor (aestivalis)Immense caeli Conditor (aestivalis)
  44. πŸ” 30% Adesto rerum conditorAdesto rerum conditor
  45. πŸ” 30% Judicii signumJudicii signum
  46. πŸ” 30% Hymnus Te DeumHymnus Te Deum
  47. πŸ” 30% Quale cum caelumQuale cum caelum
  48. πŸ” 30% Rector potens (In Dominicis per Annum)Rector potens (In Dominicis per Annum)
  49. πŸ” 30% Te lucis ante terminum (Passiontide)Te lucis ante terminum (Passiontide)
  50. πŸ” 30% Rector potens (In Tempore Paschali)Rector potens (In Tempore Paschali)
  51. πŸ” 30% Magnae Deus potentiae (aestivalis)Magnae Deus potentiae (aestivalis)
  52. πŸ” 30% Credo VCredo V
  53. πŸ” 30% Exsultet orbis gaudiisExsultet orbis gaudiis
  54. πŸ” 30% Te lucis ante terminum (Temp. Passionis)Te lucis ante terminum (Temp. Passionis)
  55. πŸ” 29% Ave Maris Stella (Off. BMV in Sab.)Ave Maris Stella (Off. BMV in Sab.)
  56. πŸ” 29% Ave maris stella (Officium Parvum)Ave maris stella (Officium Parvum)
  57. πŸ” 29% Te lucis ante terminum (In Quadragesima)Te lucis ante terminum (In Quadragesima)
  58. πŸ” 29% Rector potens verax Deus (in Dom. et Minor. Festis)Rector potens verax Deus (in Dom. et Minor. Festis)
  59. πŸ” 29% Rerum Deus (In Quadragesima)Rerum Deus (In Quadragesima)
  60. πŸ” 29% Nunc Sancte nobis (in Feriis per annum)Nunc Sancte nobis (in Feriis per annum)
  61. πŸ” 29% Te DeumTe Deum
  62. πŸ” 29% Te DeumTe Deum
  63. πŸ” 29% Exsultet jam AngelicaExsultet jam Angelica
  64. πŸ” 29% Pergrata mundoPergrata mundo
  65. πŸ” 29% Telluris ingens (in Aestate)Telluris ingens (in Aestate)