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% Lucis LargitorLucis Largitor
  2. 🔍 52% Adesto rerum conditorAdesto rerum conditor
  3. 🔍 51% Splendor paternae gloriae (in Aestate)Splendor paternae gloriae (in Aestate)
  4. 🔍 50% Aeterne lucis conditorAeterne lucis conditor
  5. 🔍 49% Splendor paternaeSplendor paternae
  6. 🔍 49% Splendor paternae gloriaeSplendor paternae gloriae
  7. 🔍 47% Fulgentis auctor aetherisFulgentis auctor aetheris
  8. 🔍 45% Deus qui caeli lumen esDeus qui caeli lumen es
  9. 🔍 45% Aeterna caeli gloria (in Aestate)Aeterna caeli gloria (in Aestate)
  10. 🔍 45% Aeterna caeli gloria (aestivalis)Aeterna caeli gloria (aestivalis)
  11. 🔍 44% Aeterna caeli gloriaAeterna caeli gloria
  12. 🔍 44% Aeterne rerum Conditor (Dox. Deo Patri)Aeterne rerum Conditor (Dox. Deo Patri)
  13. 🔍 43% Nox et tenebrae (in Aestate)Nox et tenebrae (in Aestate)
  14. 🔍 42% Nox et tenebraeNox et tenebrae
  15. 🔍 41% Lux ecce surgit (in Aestate)Lux ecce surgit (in Aestate)
  16. 🔍 41% Iam lucis orto sidereIam lucis orto sidere
  17. 🔍 41% Amoris sensus erige (tonus ad laudes cycl. II, ubi prima celebratur)Amoris sensus erige (tonus ad laudes cycl. II, ubi prima celebratur)
  18. 🔍 40% Ales diei nuntiusAles diei nuntius
  19. 🔍 40% Ales diei nuntiusAles diei nuntius
  20. 🔍 40% Ales diei nuntius (aestivalis)Ales diei nuntius (aestivalis)
  21. 🔍 40% Dicamus laudes (In dominicis)Dicamus laudes (In dominicis)
  22. 🔍 39% Aurora jam spargitAurora jam spargit
  23. 🔍 39% Aurora Jam Spargit Polum (aestivalis)Aurora Jam Spargit Polum (aestivalis)
  24. 🔍 38% Eterne rerumEterne rerum
  25. 🔍 38% Lux aeternaLux aeterna
  26. 🔍 37% Verbum supernum prodiens aVerbum supernum prodiens a
  27. 🔍 36% O vos unanimesO vos unanimes
  28. 🔍 36% Lux ecce surgit aureaLux ecce surgit aurea
  29. 🔍 36% Exsultet jam AngelicaExsultet jam Angelica
  30. 🔍 36% Rerum Deus (In Adventu)Rerum Deus (In Adventu)
  31. 🔍 35% Sanctorum meritisSanctorum meritis
  32. 🔍 35% Praefatio solemnior de sanctissima TrinitatePraefatio solemnior de sanctissima Trinitate
  33. 🔍 35% Jam lucis orto sidere (Tempore Adventus)Jam lucis orto sidere (Tempore Adventus)
  34. 🔍 35% Rector potens (In Adventu)Rector potens (In Adventu)
  35. 🔍 35% Rector potens (In Adventu)Rector potens (In Adventu)
  36. 🔍 35% Dicamus laudes (In feriis)Dicamus laudes (In feriis)
  37. 🔍 35% Diei luce redditaDiei luce reddita
  38. 🔍 35% Galli cantuGalli cantu
  39. 🔍 34% Nunc Sancte nobis (In Adventu)Nunc Sancte nobis (In Adventu)
  40. 🔍 34% Venite exsultemus DominoVenite exsultemus Domino
  41. 🔍 34% Jam Lucis Orto T.P.Jam Lucis Orto T.P.
  42. 🔍 34% Exsultet iam angelicaExsultet iam angelica
  43. 🔍 34% Certum tenentes (In dominicis per annum)Certum tenentes (In dominicis per annum)
  44. 🔍 34% Gentis redemptaeGentis redemptae
  45. 🔍 34% Decus morumDecus morum
  46. 🔍 34% Praefatio solemnior de S. BenedictoPraefatio solemnior de S. Benedicto
  47. 🔍 34% Praefatio solemnis de Ecclesiae DedicationePraefatio solemnis de Ecclesiae Dedicatione
  48. 🔍 34% Praefatio solemnior de Ecclesiae DedicationePraefatio solemnior de Ecclesiae Dedicatione
  49. 🔍 33% Praefatio solemnior de Spiritu SanctoPraefatio solemnior de Spiritu Sancto
  50. 🔍 33% Verbum supernum prodiens a Verbum supernum prodiens a
  51. 🔍 33% Adesto rerum conditorAdesto rerum conditor
  52. 🔍 33% Jam lucis orto sidere (In tempore Quadragesimae)Jam lucis orto sidere (In tempore Quadragesimae)
  53. 🔍 33% Exsultet jam AngelicaExsultet jam Angelica
  54. 🔍 33% Praefatio solemnior de nuptiisPraefatio solemnior de nuptiis
  55. 🔍 33% Corde natus ex ParentisCorde natus ex Parentis
  56. 🔍 33% Praefatio solemnior de sancto Joanne BaptistaPraefatio solemnior de sancto Joanne Baptista
  57. 🔍 32% Exsultet iam angelica (brevior)Exsultet iam angelica (brevior)
  58. 🔍 32% Iam ChristeIam Christe
  59. 🔍 32% Praefatio solemnior de AngelisPraefatio solemnior de Angelis
  60. 🔍 32% Praefatio solemnior de beata Maria VirginePraefatio solemnior de beata Maria Virgine
  61. 🔍 32% Ex quo religioEx quo religio
  62. 🔍 32% Praefatio solemnis de S. BenedictoPraefatio solemnis de S. Benedicto
  63. 🔍 32% Beata nobisBeata nobis
  64. 🔍 32% Conditor alme siderumConditor alme siderum
  65. 🔍 32% Praefatio solemnior de sacratissimo Corde IesuPraefatio solemnior de sacratissimo Corde Iesu