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 dierumPrimo dierum
  2. 🔍 84% Primo dPrimo d
  3. 🔍 84% Primo dPrimo d
  4. 🔍 81% Primo dierum omniumPrimo dierum omnium
  5. 🔍 59% Rerum creator optimeRerum creator optime
  6. 🔍 59% Tu Trinitatis UnitasTu Trinitatis Unitas
  7. 🔍 58% Somno refectisSomno refectis
  8. 🔍 58% Nox atra rerumNox atra rerum
  9. 🔍 57% Summae Deus clementiaeSummae Deus clementiae
  10. 🔍 57% Nox atra rerum (+rhythmic signs)Nox atra rerum (+rhythmic signs)
  11. 🔍 57% Summae Deus (+rhythmic signs)Summae Deus (+rhythmic signs)
  12. 🔍 57% Adesto Christe cordibusAdesto Christe cordibus
  13. 🔍 57% Tu Trinitatis (+rhythmic signs)Tu Trinitatis (+rhythmic signs)
  14. 🔍 56% Rerum creator optimeRerum creator optime
  15. 🔍 56% Rerum creator (+rhythmic signs)Rerum creator (+rhythmic signs)
  16. 🔍 54% Auctor perennisAuctor perennis
  17. 🔍 53% Dies aetasqueDies aetasque
  18. 🔍 53% Consors paterniConsors paterni
  19. 🔍 52% Somno refectis (+rhythmic signs)Somno refectis (+rhythmic signs)
  20. 🔍 52% Primo die quo TrinitasPrimo die quo Trinitas
  21. 🔍 52% Christe precamurChriste precamur
  22. 🔍 52% Adesto Christe (+rhythmic signs)Adesto Christe (+rhythmic signs)
  23. 🔍 50% Aeterna lux divinitasAeterna lux divinitas
  24. 🔍 48% Dies aetasque (+rhythmic signs)Dies aetasque (+rhythmic signs)
  25. 🔍 47% O sacrosancta TrinitasO sacrosancta Trinitas
  26. 🔍 47% Consors paterni (+rhythmic signs)Consors paterni (+rhythmic signs)
  27. 🔍 45% Scientiarum DominoScientiarum Domino
  28. 🔍 42% Iesu corona celsiorIesu corona celsior
  29. 🔍 42% Iesu corona celsiorIesu corona celsior
  30. 🔍 42% Iesu corona celsiorIesu corona celsior
  31. 🔍 40% Laeti colentes famulumLaeti colentes famulum
  32. 🔍 39% Jam lucis orto sidere (In Adventu)Jam lucis orto sidere (In Adventu)
  33. 🔍 38% Exsultet orbis gaudiis (St. John Evangelist)Exsultet orbis gaudiis (St. John Evangelist)
  34. 🔍 38% Exsultet orbis gaudiis (Pro S. Joanne Evang.)Exsultet orbis gaudiis (Pro S. Joanne Evang.)
  35. 🔍 38% Christe Redemptor omniumChriste Redemptor omnium
  36. 🔍 38% Jam lucis orto sidere (Dominicis per Annum)Jam lucis orto sidere (Dominicis per Annum)
  37. 🔍 37% Christe Redemptor omnium ex PatreChriste Redemptor omnium ex Patre
  38. 🔍 37% Jam lucis orto sidere (In Festo Corporis Christi)Jam lucis orto sidere (In Festo Corporis Christi)
  39. 🔍 37% Jam lucis orto sidere (in Nativitate Domini)Jam lucis orto sidere (in Nativitate Domini)
  40. 🔍 36% Jesu Redemptor omnium (Nat.)Jesu Redemptor omnium (Nat.)
  41. 🔍 35% Jesu Redemptor omnium (T. Nativitatis)Jesu Redemptor omnium (T. Nativitatis)
  42. 🔍 35% Te pater JosephTe pater Joseph
  43. 🔍 34% Invicte Martyr unicum (Pro S. Stephano)Invicte Martyr unicum (Pro S. Stephano)
  44. 🔍 34% Jesu Redemptor omnium (Pont.) (Pro S. Silvestro)Jesu Redemptor omnium (Pont.) (Pro S. Silvestro)
  45. 🔍 34% Jesu Salvator saeculiJesu Salvator saeculi
  46. 🔍 34% En clara voxEn clara vox
  47. 🔍 33% Deus tuorum militum (Pro S. Stephano)Deus tuorum militum (Pro S. Stephano)
  48. 🔍 33% En clara voxEn clara vox
  49. 🔍 33% Jesu corona caelitumJesu corona caelitum
  50. 🔍 33% Deus tuorum militum (St. Stephen)Deus tuorum militum (St. Stephen)
  51. 🔍 33% Rerum Deus (In Adventu)Rerum Deus (In Adventu)
  52. 🔍 33% Rerum Deus (In Adventu)Rerum Deus (In Adventu)
  53. 🔍 32% Vita sanctorumVita sanctorum
  54. 🔍 32% Rerum Deus (In Festo Corporis Christi)Rerum Deus (In Festo Corporis Christi)
  55. 🔍 32% Rector potens (In Adventu)Rector potens (In Adventu)
  56. 🔍 32% Rector potens (In Festo Corporis Christi)Rector potens (In Festo Corporis Christi)
  57. 🔍 31% Salvete flores MartyrumSalvete flores Martyrum
  58. 🔍 31% Jesu dulcis memoria (Nat)Jesu dulcis memoria (Nat)
  59. 🔍 31% Ad coenamAd coenam
  60. 🔍 31% Ad CoenamAd Coenam
  61. 🔍 31% Jesu Rex admirabilisJesu Rex admirabilis
  62. 🔍 31% Salvete flores MartyrumSalvete flores Martyrum
  63. 🔍 31% Ad cenamAd cenam
  64. 🔍 30% Ad regias Agni dapesAd regias Agni dapes
  65. 🔍 29% Invicte MartyrInvicte Martyr