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% Primo dPrimo d
  2. 🔍 100% Primo dPrimo d
  3. 🔍 95% Primo dierum omniumPrimo dierum omnium
  4. 🔍 84% Primo dierumPrimo dierum
  5. 🔍 62% Summae Deus clementiaeSummae Deus clementiae
  6. 🔍 62% Summae Deus (+rhythmic signs)Summae Deus (+rhythmic signs)
  7. 🔍 60% Tu Trinitatis UnitasTu Trinitatis Unitas
  8. 🔍 59% Somno refectisSomno refectis
  9. 🔍 58% Tu Trinitatis (+rhythmic signs)Tu Trinitatis (+rhythmic signs)
  10. 🔍 57% Rerum creator optimeRerum creator optime
  11. 🔍 56% Nox atra rerumNox atra rerum
  12. 🔍 56% Nox atra rerum (+rhythmic signs)Nox atra rerum (+rhythmic signs)
  13. 🔍 55% Adesto Christe cordibusAdesto Christe cordibus
  14. 🔍 54% Auctor perennisAuctor perennis
  15. 🔍 54% Rerum creator optimeRerum creator optime
  16. 🔍 54% Dies aetasqueDies aetasque
  17. 🔍 53% Rerum creator (+rhythmic signs)Rerum creator (+rhythmic signs)
  18. 🔍 53% Somno refectis (+rhythmic signs)Somno refectis (+rhythmic signs)
  19. 🔍 52% Consors paterniConsors paterni
  20. 🔍 52% Christe precamurChriste precamur
  21. 🔍 51% Primo die quo TrinitasPrimo die quo Trinitas
  22. 🔍 50% Adesto Christe (+rhythmic signs)Adesto Christe (+rhythmic signs)
  23. 🔍 50% Aeterna lux divinitasAeterna lux divinitas
  24. 🔍 49% O sacrosancta TrinitasO sacrosancta Trinitas
  25. 🔍 49% Dies aetasque (+rhythmic signs)Dies aetasque (+rhythmic signs)
  26. 🔍 46% Consors paterni (+rhythmic signs)Consors paterni (+rhythmic signs)
  27. 🔍 44% Scientiarum DominoScientiarum Domino
  28. 🔍 42% Iesu corona celsiorIesu corona celsior
  29. 🔍 42% Iesu corona celsiorIesu corona celsior
  30. 🔍 42% Laeti colentes famulumLaeti colentes famulum
  31. 🔍 42% Iesu corona celsiorIesu corona celsior
  32. 🔍 38% Christe Redemptor omnium ex PatreChriste Redemptor omnium ex Patre
  33. 🔍 38% Christe Redemptor omniumChriste Redemptor omnium
  34. 🔍 38% Jam lucis orto sidere (In Adventu)Jam lucis orto sidere (In Adventu)
  35. 🔍 38% Jam lucis orto sidere (Dominicis per Annum)Jam lucis orto sidere (Dominicis per Annum)
  36. 🔍 38% Venite exsultemus IIVenite exsultemus II
  37. 🔍 37% Exsultet orbis gaudiis (Pro S. Joanne Evang.)Exsultet orbis gaudiis (Pro S. Joanne Evang.)
  38. 🔍 37% Te pater JosephTe pater Joseph
  39. 🔍 37% Jam lucis orto sidere (In Festo Corporis Christi)Jam lucis orto sidere (In Festo Corporis Christi)
  40. 🔍 36% Exsultet orbis gaudiis (St. John Evangelist)Exsultet orbis gaudiis (St. John Evangelist)
  41. 🔍 36% Jam lucis orto sidere (in Nativitate Domini)Jam lucis orto sidere (in Nativitate Domini)
  42. 🔍 36% Igne divini radiansIgne divini radians
  43. 🔍 36% Jesu Redemptor omnium (T. Nativitatis)Jesu Redemptor omnium (T. Nativitatis)
  44. 🔍 36% Jesu Redemptor omnium (Nat.)Jesu Redemptor omnium (Nat.)
  45. 🔍 35% Jesu Redemptor omnium (Pont.) (Pro S. Silvestro)Jesu Redemptor omnium (Pont.) (Pro S. Silvestro)
  46. 🔍 35% Sanctorum meritis 2Sanctorum meritis 2
  47. 🔍 34% Rerum Deus (In Adventu)Rerum Deus (In Adventu)
  48. 🔍 34% Rerum Deus (In Adventu)Rerum Deus (In Adventu)
  49. 🔍 34% Rector potens (In Adventu)Rector potens (In Adventu)
  50. 🔍 34% Te lucis ante terminum (In Festis)Te lucis ante terminum (In Festis)
  51. 🔍 34% Christe qui splendor (in festis)Christe qui splendor (in festis)
  52. 🔍 34% Jesu Salvator saeculiJesu Salvator saeculi
  53. 🔍 34% Deus tuorum militum (Pro S. Stephano)Deus tuorum militum (Pro S. Stephano)
  54. 🔍 33% Invicte Martyr unicum (Pro S. Stephano)Invicte Martyr unicum (Pro S. Stephano)
  55. 🔍 33% Venite exsultemus VIVenite exsultemus VI
  56. 🔍 33% Deus tuorum militum (St. Stephen)Deus tuorum militum (St. Stephen)
  57. 🔍 33% Jesu corona caelitumJesu corona caelitum
  58. 🔍 33% Jesu Rex admirabilisJesu Rex admirabilis
  59. 🔍 33% Jesu dulcis memoria (Nat)Jesu dulcis memoria (Nat)
  60. 🔍 33% Fortem virili pectore (per annum)Fortem virili pectore (per annum)
  61. 🔍 32% Ad CoenamAd Coenam
  62. 🔍 32% Ad coenamAd coenam
  63. 🔍 32% Te lucis ante terminum (In Festis Majoribus)Te lucis ante terminum (In Festis Majoribus)
  64. 🔍 32% En clara voxEn clara vox
  65. 🔍 32% Fortem virili pectore (Saint Helena)Fortem virili pectore (Saint Helena)