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% Somno refectis artubusSomno refectis artubus
  2. πŸ” 67% Somno refectisSomno refectis
  3. πŸ” 62% Somno refectis (+rhythmic signs)Somno refectis (+rhythmic signs)
  4. πŸ” 51% Nox atra rerum contegitNox atra rerum contegit
  5. πŸ” 43% Tu Trinitatis unitasTu Trinitatis unitas
  6. πŸ” 43% Consors paterni luminisConsors paterni luminis
  7. πŸ” 40% Rerum Creator optimeRerum Creator optime
  8. πŸ” 39% Summae Parens clementiaeSummae Parens clementiae
  9. πŸ” 35% Credo ICredo I
  10. πŸ” 35% Jam lucis orto sidere (In tempore Quadragesimae)Jam lucis orto sidere (In tempore Quadragesimae)
  11. πŸ” 35% Exsultet iam angelicaExsultet iam angelica
  12. πŸ” 34% Credo I (forma ordinaria)Credo I (forma ordinaria)
  13. πŸ” 34% Credo ICredo I
  14. πŸ” 34% Nox et tenebraeNox et tenebrae
  15. πŸ” 33% Ave Maris StellaAve Maris Stella
  16. πŸ” 33% Credo ICredo I
  17. πŸ” 32% Primo dierum omniumPrimo dierum omnium
  18. πŸ” 32% Exsultet jam AngelicaExsultet jam Angelica
  19. πŸ” 32% Nocte surgentesNocte surgentes
  20. πŸ” 32% Primo die quo TrinitasPrimo die quo Trinitas
  21. πŸ” 32% Rerum Deus (In Feriis per Annum)Rerum Deus (In Feriis per Annum)
  22. πŸ” 31% Nox et tenebrae (in Hieme)Nox et tenebrae (in Hieme)
  23. πŸ” 31% Rerum Deus (In Nativitate Domini)Rerum Deus (In Nativitate Domini)
  24. πŸ” 31% Ave maris stella (Officium Parvum)Ave maris stella (Officium Parvum)
  25. πŸ” 31% Jam Lucis Orto T.P.Jam Lucis Orto T.P.
  26. πŸ” 31% Aurora iamAurora iam
  27. πŸ” 31% Mediae noctisMediae noctis
  28. πŸ” 31% Ave Maris Stella (Off. BMV in Sab.)Ave Maris Stella (Off. BMV in Sab.)
  29. πŸ” 30% Adesto rerum conditorAdesto rerum conditor
  30. πŸ” 30% Te lucis ante terminum (In Fer. et Fest. Simpl.)Te lucis ante terminum (In Fer. et Fest. Simpl.)
  31. πŸ” 30% Rerum Deus tenax vigor (In Quadragesima)Rerum Deus tenax vigor (In Quadragesima)
  32. πŸ” 30% Deus qui claro lΓΊmineDeus qui claro lΓΊmine
  33. πŸ” 30% Rerum Deus (In Adventu)Rerum Deus (In Adventu)
  34. πŸ” 30% Rerum Deus (In Adventu)Rerum Deus (In Adventu)
  35. πŸ” 30% Aeterne lucis conditorAeterne lucis conditor
  36. πŸ” 30% Caeli Deus (Summer Tone)Caeli Deus (Summer Tone)
  37. πŸ” 30% Te lucis ante terminum (in dominicis per annum)Te lucis ante terminum (in dominicis per annum)
  38. πŸ” 30% Jam lucis orto sidere (Feriis et Officiis Simplicibus per Annum)Jam lucis orto sidere (Feriis et Officiis Simplicibus per Annum)
  39. πŸ” 30% Te lucis ante terminum (In tempore Passionis)Te lucis ante terminum (In tempore Passionis)
  40. πŸ” 30% Nunc Sancte nobis (in Feriis per annum)Nunc Sancte nobis (in Feriis per annum)
  41. πŸ” 29% Credo VCredo V
  42. πŸ” 29% Nox atra rerum (+rhythmic signs)Nox atra rerum (+rhythmic signs)
  43. πŸ” 29% Jam lucis orto sidere (In Dom. et Minor. Festis)Jam lucis orto sidere (In Dom. et Minor. Festis)
  44. πŸ” 29% Hymnus Te DeumHymnus Te Deum
  45. πŸ” 29% Jam lucis orto sidere (In Feriis et Fest. Simpl.)Jam lucis orto sidere (In Feriis et Fest. Simpl.)
  46. πŸ” 29% Exsultet orbis gaudiisExsultet orbis gaudiis
  47. πŸ” 29% Te lucis ante terminum (In Quadragesima)Te lucis ante terminum (In Quadragesima)
  48. πŸ” 29% Jam lucis orto sidere (In Tempore Paschali)Jam lucis orto sidere (In Tempore Paschali)
  49. πŸ” 29% Rector potens (in Feriis per Annum)Rector potens (in Feriis per Annum)
  50. πŸ” 29% Te Deum laudamus (tonus simplex)Te Deum laudamus (tonus simplex)
  51. πŸ” 29% Te DeumTe Deum
  52. πŸ” 29% Exsultet orbis gaudiisExsultet orbis gaudiis
  53. πŸ” 29% Rector Potens (In Feriis per annum et Festis Simplicibus)Rector Potens (In Feriis per annum et Festis Simplicibus)
  54. πŸ” 29% Te DeumTe Deum
  55. πŸ” 29% Aurora Jam Spargit Polum (hiemalis)Aurora Jam Spargit Polum (hiemalis)
  56. πŸ” 29% Jam lucis orto sidere (ord. Sund.)Jam lucis orto sidere (ord. Sund.)
  57. πŸ” 29% Caeli civesCaeli cives
  58. πŸ” 29% Te lucis ante terminum (In Dom. et Minor. Festis per Annum)Te lucis ante terminum (In Dom. et Minor. Festis per Annum)
  59. πŸ” 29% Caeli DeusCaeli Deus
  60. πŸ” 29% Amoris sensus erigeAmoris sensus erige
  61. πŸ” 29% Nunc Sancte nobis Spiritus (In Quadragesima)Nunc Sancte nobis Spiritus (In Quadragesima)
  62. πŸ” 29% Nox atra rerumNox atra rerum
  63. πŸ” 29% Te lucis ante terminum (Lent)Te lucis ante terminum (Lent)
  64. πŸ” 29% Te lucis ante terminum (In Epiphania Domini)Te lucis ante terminum (In Epiphania Domini)
  65. πŸ” 29% Nunc Sancte nobis (In Quadragesima)Nunc Sancte nobis (In Quadragesima)