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