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 dierum omniumPrimo dierum omnium
  2. 🔍 95% Primo dPrimo d
  3. 🔍 95% Primo dPrimo d
  4. 🔍 81% Primo dierumPrimo dierum
  5. 🔍 59% Summae Deus clementiaeSummae Deus clementiae
  6. 🔍 59% Summae Deus (+rhythmic signs)Summae Deus (+rhythmic signs)
  7. 🔍 56% Tu Trinitatis UnitasTu Trinitatis Unitas
  8. 🔍 56% Somno refectisSomno refectis
  9. 🔍 55% Tu Trinitatis (+rhythmic signs)Tu Trinitatis (+rhythmic signs)
  10. 🔍 54% Rerum creator optimeRerum creator optime
  11. 🔍 53% Nox atra rerumNox atra rerum
  12. 🔍 53% Nox atra rerum (+rhythmic signs)Nox atra rerum (+rhythmic signs)
  13. 🔍 52% Adesto Christe cordibusAdesto Christe cordibus
  14. 🔍 51% Auctor perennisAuctor perennis
  15. 🔍 51% Rerum creator optimeRerum creator optime
  16. 🔍 50% Dies aetasqueDies aetasque
  17. 🔍 50% Rerum creator (+rhythmic signs)Rerum creator (+rhythmic signs)
  18. 🔍 50% Primo die quo TrinitasPrimo die quo Trinitas
  19. 🔍 50% Somno refectis (+rhythmic signs)Somno refectis (+rhythmic signs)
  20. 🔍 49% Consors paterniConsors paterni
  21. 🔍 49% Christe precamurChriste precamur
  22. 🔍 47% Adesto Christe (+rhythmic signs)Adesto Christe (+rhythmic signs)
  23. 🔍 47% Aeterna lux divinitasAeterna lux divinitas
  24. 🔍 47% O sacrosancta TrinitasO sacrosancta Trinitas
  25. 🔍 46% Dies aetasque (+rhythmic signs)Dies aetasque (+rhythmic signs)
  26. 🔍 43% Consors paterni (+rhythmic signs)Consors paterni (+rhythmic signs)
  27. 🔍 41% Scientiarum DominoScientiarum Domino
  28. 🔍 40% Iesu corona celsiorIesu corona celsior
  29. 🔍 40% Iesu corona celsiorIesu corona celsior
  30. 🔍 39% Laeti colentes famulumLaeti colentes famulum
  31. 🔍 39% Iesu corona celsiorIesu corona celsior
  32. 🔍 37% Jam lucis orto sidere (In Adventu)Jam lucis orto sidere (In Adventu)
  33. 🔍 37% Jam lucis orto sidere (Dominicis per Annum)Jam lucis orto sidere (Dominicis per Annum)
  34. 🔍 36% Tu Trinitatis unitasTu Trinitatis unitas
  35. 🔍 36% Christe Redemptor omnium ex PatreChriste Redemptor omnium ex Patre
  36. 🔍 36% Christe Redemptor omniumChriste Redemptor omnium
  37. 🔍 36% Jam lucis orto sidere (In Festo Corporis Christi)Jam lucis orto sidere (In Festo Corporis Christi)
  38. 🔍 36% Jam lucis orto sidere (in Nativitate Domini)Jam lucis orto sidere (in Nativitate Domini)
  39. 🔍 35% Igne divini radiansIgne divini radians
  40. 🔍 35% Venite exsultemus IIVenite exsultemus II
  41. 🔍 34% Exsultet orbis gaudiis (Pro S. Joanne Evang.)Exsultet orbis gaudiis (Pro S. Joanne Evang.)
  42. 🔍 34% Jesu Redemptor omnium (T. Nativitatis)Jesu Redemptor omnium (T. Nativitatis)
  43. 🔍 34% Exsultet orbis gaudiis (St. John Evangelist)Exsultet orbis gaudiis (St. John Evangelist)
  44. 🔍 34% Jesu Redemptor omnium (Nat.)Jesu Redemptor omnium (Nat.)
  45. 🔍 34% Summae Parens clementiaeSummae Parens clementiae
  46. 🔍 34% Rerum Creator optimeRerum Creator optime
  47. 🔍 33% Rerum Deus (In Adventu)Rerum Deus (In Adventu)
  48. 🔍 33% Rerum Deus (In Adventu)Rerum Deus (In Adventu)
  49. 🔍 33% Nox atra rerum contegitNox atra rerum contegit
  50. 🔍 33% Rector potens (In Adventu)Rector potens (In Adventu)
  51. 🔍 33% Te pater JosephTe pater Joseph
  52. 🔍 33% Te lucis ante terminum (In Festis)Te lucis ante terminum (In Festis)
  53. 🔍 33% Jesu Redemptor omnium (Pont.) (Pro S. Silvestro)Jesu Redemptor omnium (Pont.) (Pro S. Silvestro)
  54. 🔍 33% Christe qui splendor (in festis)Christe qui splendor (in festis)
  55. 🔍 32% Somno refectis artubusSomno refectis artubus
  56. 🔍 32% Venite exsultemus VIVenite exsultemus VI
  57. 🔍 32% Jesu Rex admirabilisJesu Rex admirabilis
  58. 🔍 32% Fortem virili pectore (per annum)Fortem virili pectore (per annum)
  59. 🔍 32% Te lucis ante terminum (In Festis Majoribus)Te lucis ante terminum (In Festis Majoribus)
  60. 🔍 32% Sanctorum meritis 2Sanctorum meritis 2
  61. 🔍 31% Jesu Salvator saeculiJesu Salvator saeculi
  62. 🔍 31% Deus tuorum militum (Pro S. Stephano)Deus tuorum militum (Pro S. Stephano)
  63. 🔍 31% En clara voxEn clara vox
  64. 🔍 31% Invicte Martyr unicum (Pro S. Stephano)Invicte Martyr unicum (Pro S. Stephano)
  65. 🔍 31% Fortem virili pectore (Saint Helena)Fortem virili pectore (Saint Helena)