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% Urbs fortitudinisUrbs fortitudinis
  2. 🔍 100% Urbs fortitudinisUrbs fortitudinis
  3. 🔍 93% Urbs fortitudinisUrbs fortitudinis
  4. 🔍 93% Urbs fortitudinisUrbs fortitudinis
  5. 🔍 64% Urbs fortitudinisUrbs fortitudinis
  6. 🔍 61% Urbs fortitudinis nostraeUrbs fortitudinis nostrae
  7. 🔍 51% Urbs fortitudinis nostrae SionUrbs fortitudinis nostrae Sion
  8. 🔍 50% Urbs fortitudinisUrbs fortitudinis
  9. 🔍 36% Egredietur DominusEgredietur Dominus
  10. 🔍 36% Egredietur DominusEgredietur Dominus
  11. 🔍 35% Urbs fortitudinisUrbs fortitudinis
  12. 🔍 34% Ad te Domine levaviAd te Domine levavi
  13. 🔍 32% De nocteDe nocte
  14. 🔍 31% De Sion veniet DominusDe Sion veniet Dominus
  15. 🔍 31% De Sion veniet DominusDe Sion veniet Dominus
  16. 🔍 31% Rorate caeliRorate caeli
  17. 🔍 31% Ego autem ad DominumEgo autem ad Dominum
  18. 🔍 31% Ego autem ad DominumEgo autem ad Dominum
  19. 🔍 31% Sion renovaberisSion renovaberis
  20. 🔍 31% Sion renovaberisSion renovaberis
  21. 🔍 30% Propter SionPropter Sion
  22. 🔍 30% Propter SionPropter Sion
  23. 🔍 30% Rorate caeli desuperRorate caeli desuper
  24. 🔍 30% Dum venerit FiliusDum venerit Filius
  25. 🔍 30% Dum venerit FiliusDum venerit Filius
  26. 🔍 30% De Sion veniet qui regnaturusDe Sion veniet qui regnaturus
  27. 🔍 30% De Sion veniet qui regnaturusDe Sion veniet qui regnaturus
  28. 🔍 29% Ut cognoscamusUt cognoscamus
  29. 🔍 29% Ut cognoscamusUt cognoscamus
  30. 🔍 29% Te qui in SpirituTe qui in Spiritu
  31. 🔍 29% Domine magnus esDomine magnus es
  32. 🔍 28% Quaerite DominumQuaerite Dominum
  33. 🔍 28% Quaerite DominumQuaerite Dominum
  34. 🔍 28% Domine in caeloDomine in caelo
  35. 🔍 28% Deus a LibanoDeus a Libano
  36. 🔍 28% Deus a LibanoDeus a Libano
  37. 🔍 28% Da mercedem DomineDa mercedem Domine
  38. 🔍 28% Angelus ad pastoresAngelus ad pastores
  39. 🔍 28% Te decet hymnusTe decet hymnus
  40. 🔍 27% Qui sitit veniatQui sitit veniat
  41. 🔍 27% Omnis vallisOmnis vallis
  42. 🔍 27% Ecce veniet Dominus princepsEcce veniet Dominus princeps
  43. 🔍 27% Ecce veniet Dominus princepsEcce veniet Dominus princeps
  44. 🔍 27% Da mercedem DomineDa mercedem Domine
  45. 🔍 27% In DominoIn Domino
  46. 🔍 27% Spiritus Domini superSpiritus Domini super
  47. 🔍 27% Spiritus Domini superSpiritus Domini super
  48. 🔍 27% Emitte AgnumEmitte Agnum
  49. 🔍 27% Qui post meQui post me
  50. 🔍 27% Qui post meQui post me
  51. 🔍 27% Magnum mysteriumMagnum mysterium
  52. 🔍 27% Memorare DomineMemorare Domine
  53. 🔍 27% Constantes estoteConstantes estote
  54. 🔍 27% Tu es qui venturus DomineTu es qui venturus Domine
  55. 🔍 27% Omnis vallis (Mode 5a)Omnis vallis (Mode 5a)
  56. 🔍 26% Exspectabo DominumExspectabo Dominum
  57. 🔍 26% Exspectabo DominumExspectabo Dominum
  58. 🔍 26% Sion noli timereSion noli timere
  59. 🔍 26% Sion noli timereSion noli timere
  60. 🔍 26% Emitte AgnumEmitte Agnum
  61. 🔍 26% Exaudiat te DominusExaudiat te Dominus
  62. 🔍 26% Constantes estoteConstantes estote
  63. 🔍 26% Discerne causamDiscerne causam
  64. 🔍 26% Paratus estoParatus esto
  65. 🔍 26% Paratus estoParatus esto