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% Nox atra rerum (+rhythmic signs)Nox atra rerum (+rhythmic signs)
  2. 🔍 94% Nox atra rerumNox atra rerum
  3. 🔍 62% Somno refectisSomno refectis
  4. 🔍 61% Rerum creator optimeRerum creator optime
  5. 🔍 60% Rerum creator (+rhythmic signs)Rerum creator (+rhythmic signs)
  6. 🔍 60% Adesto Christe cordibusAdesto Christe cordibus
  7. 🔍 59% Somno refectis (+rhythmic signs)Somno refectis (+rhythmic signs)
  8. 🔍 58% Rerum creator optimeRerum creator optime
  9. 🔍 58% Summae Deus (+rhythmic signs)Summae Deus (+rhythmic signs)
  10. 🔍 58% Nox atra rerum contegitNox atra rerum contegit
  11. 🔍 58% Consors paterniConsors paterni
  12. 🔍 57% Primo dierumPrimo dierum
  13. 🔍 57% Christe precamurChriste precamur
  14. 🔍 57% Adesto Christe (+rhythmic signs)Adesto Christe (+rhythmic signs)
  15. 🔍 56% Auctor perennisAuctor perennis
  16. 🔍 56% Tu Trinitatis (+rhythmic signs)Tu Trinitatis (+rhythmic signs)
  17. 🔍 56% Primo dPrimo d
  18. 🔍 56% Primo dPrimo d
  19. 🔍 55% Summae Deus clementiaeSummae Deus clementiae
  20. 🔍 55% Tu Trinitatis UnitasTu Trinitatis Unitas
  21. 🔍 54% Dies aetasqueDies aetasque
  22. 🔍 54% Consors paterni (+rhythmic signs)Consors paterni (+rhythmic signs)
  23. 🔍 53% Primo dierum omniumPrimo dierum omnium
  24. 🔍 52% Dies aetasque (+rhythmic signs)Dies aetasque (+rhythmic signs)
  25. 🔍 50% Aeterna lux divinitasAeterna lux divinitas
  26. 🔍 47% Scientiarum DominoScientiarum Domino
  27. 🔍 47% O sacrosancta TrinitasO sacrosancta Trinitas
  28. 🔍 44% Iesu corona celsiorIesu corona celsior
  29. 🔍 44% Iesu corona celsiorIesu corona celsior
  30. 🔍 44% Iesu corona celsiorIesu corona celsior
  31. 🔍 40% Laeti colentes famulumLaeti colentes famulum
  32. 🔍 39% Christe Redemptor omniumChriste Redemptor omnium
  33. 🔍 38% Nox et tenebraeNox et tenebrae
  34. 🔍 38% Christe Redemptor omnium ex PatreChriste Redemptor omnium ex Patre
  35. 🔍 37% Te pater JosephTe pater Joseph
  36. 🔍 37% Exsultet orbis gaudiis (Pro S. Joanne Evang.)Exsultet orbis gaudiis (Pro S. Joanne Evang.)
  37. 🔍 37% Exsultet orbis gaudiis (St. John Evangelist)Exsultet orbis gaudiis (St. John Evangelist)
  38. 🔍 36% Deus tuorum militum (St. Stephen)Deus tuorum militum (St. Stephen)
  39. 🔍 35% Deus tuorum militum (Pro S. Stephano)Deus tuorum militum (Pro S. Stephano)
  40. 🔍 35% En clara voxEn clara vox
  41. 🔍 35% Adesto rerum conditorAdesto rerum conditor
  42. 🔍 35% Rector potens (In Adventu)Rector potens (In Adventu)
  43. 🔍 35% Rerum Deus (In Adventu)Rerum Deus (In Adventu)
  44. 🔍 35% Rerum Deus (In Adventu)Rerum Deus (In Adventu)
  45. 🔍 35% En clara voxEn clara vox
  46. 🔍 35% Invicte Martyr unicum (Pro S. Stephano)Invicte Martyr unicum (Pro S. Stephano)
  47. 🔍 35% Jesu Redemptor omnium (T. Nativitatis)Jesu Redemptor omnium (T. Nativitatis)
  48. 🔍 35% Jesu Redemptor omnium (Pont.) (Pro S. Silvestro)Jesu Redemptor omnium (Pont.) (Pro S. Silvestro)
  49. 🔍 35% Jesu Redemptor omnium (Nat.)Jesu Redemptor omnium (Nat.)
  50. 🔍 34% Jesu Salvator saeculiJesu Salvator saeculi
  51. 🔍 34% Salvete flores MartyrumSalvete flores Martyrum
  52. 🔍 34% Jesu corona caelitumJesu corona caelitum
  53. 🔍 33% Jesu dulcis memoria (Nat)Jesu dulcis memoria (Nat)
  54. 🔍 33% Salvete flores MartyrumSalvete flores Martyrum
  55. 🔍 33% Litaniae SS. Cordis JesuLitaniae SS. Cordis Jesu
  56. 🔍 32% Jam lucis orto sidere (In Adventu)Jam lucis orto sidere (In Adventu)
  57. 🔍 32% Pergrata mundoPergrata mundo
  58. 🔍 32% Jesu Rex admirabilisJesu Rex admirabilis
  59. 🔍 31% Nunc Sancte nobis Spiritus (In Adventu)Nunc Sancte nobis Spiritus (In Adventu)
  60. 🔍 31% Primo die quo TrinitasPrimo die quo Trinitas
  61. 🔍 31% Ad cenamAd cenam
  62. 🔍 31% Nunc Sancte nobis (In Adventu)Nunc Sancte nobis (In Adventu)
  63. 🔍 31% Adesto rerum conditorAdesto rerum conditor
  64. 🔍 30% Ad coenamAd coenam
  65. 🔍 30% Ad CoenamAd Coenam