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% Quaerite DominumQuaerite Dominum
  2. 🔍 73% Quaerite DominumQuaerite Dominum
  3. 🔍 72% Quaerite DominumQuaerite Dominum
  4. 🔍 62% Quaerite DominumQuaerite Dominum
  5. 🔍 61% Quaerite DominumQuaerite Dominum
  6. 🔍 60% Quaerite DominumQuaerite Dominum
  7. 🔍 60% Quaerite DominumQuaerite Dominum
  8. 🔍 41% Exspectabo DominumExspectabo Dominum
  9. 🔍 38% Omnes sitientesOmnes sitientes
  10. 🔍 36% Omnes sitientesOmnes sitientes
  11. 🔍 34% Omnes sitientesOmnes sitientes
  12. 🔍 32% Exspectabo DominumExspectabo Dominum
  13. 🔍 31% Salus et gloriaSalus et gloria
  14. 🔍 30% Omnes sitientesOmnes sitientes
  15. 🔍 29% Alleluia Fer. IV T.P. IAlleluia Fer. IV T.P. I
  16. 🔍 29% Salus et gloriaSalus et gloria
  17. 🔍 29% Salus et gloria et virtus (VIII)Salus et gloria et virtus (VIII)
  18. 🔍 28% Salus et gloriaSalus et gloria
  19. 🔍 27% Quaerite Dominum ... et vivetQuaerite Dominum ... et vivet
  20. 🔍 27% In manus tuas (tempore Paschali)In manus tuas (tempore Paschali)
  21. 🔍 27% Laeva ejusLaeva ejus
  22. 🔍 27% ExspectaboExspectabo
  23. 🔍 27% Magnificate DominumMagnificate Dominum
  24. 🔍 27% Petite et accipietis quaeritePetite et accipietis quaerite
  25. 🔍 27% Salus et gloriaSalus et gloria
  26. 🔍 26% Quaerite Dominum ... et vivetQuaerite Dominum ... et vivet
  27. 🔍 25% Exsurgat DeusExsurgat Deus
  28. 🔍 25% Quaerite primumQuaerite primum
  29. 🔍 25% Regem Virginum Dominum (t.p.)Regem Virginum Dominum (t.p.)
  30. 🔍 25% Praefatio Paschalis IIPraefatio Paschalis II
  31. 🔍 25% Adorate DominumAdorate Dominum
  32. 🔍 25% Salus et gloria - mode IVSalus et gloria - mode IV
  33. 🔍 25% Puer natus in BethlehemPuer natus in Bethlehem
  34. 🔍 25% In manus tuas Domine (Tempore Paschali)In manus tuas Domine (Tempore Paschali)
  35. 🔍 25% Alleluia. (Monday P. T. at Lauds)Alleluia. (Monday P. T. at Lauds)
  36. 🔍 25% Petite et accipietis quaeritePetite et accipietis quaerite
  37. 🔍 25% Exspectabo DominumExspectabo Dominum
  38. 🔍 25% Exspectabo DominumExspectabo Dominum
  39. 🔍 25% Magnificate DominumMagnificate Dominum
  40. 🔍 25% Alleluia. (Sund. P. T. at Lauds)Alleluia. (Sund. P. T. at Lauds)
  41. 🔍 24% Praefatio de D. N. Iesu Christo universorum RegePraefatio de D. N. Iesu Christo universorum Rege
  42. 🔍 24% Exsultet iam angelica (brevior)Exsultet iam angelica (brevior)
  43. 🔍 24% Prex Eucharistica IVPrex Eucharistica IV
  44. 🔍 24% Adversum meAdversum me
  45. 🔍 24% Praefatio ferialis de Nativitate DominiPraefatio ferialis de Nativitate Domini
  46. 🔍 24% Alleluia (Tuesday P. T. at Lauds)Alleluia (Tuesday P. T. at Lauds)
  47. 🔍 24% Praefatio solemnis de Epiphania DominiPraefatio solemnis de Epiphania Domini
  48. 🔍 24% Angeli Domini DominumAngeli Domini Dominum
  49. 🔍 24% Dum tribularerDum tribularer
  50. 🔍 24% Spiritus qui a Patre proceditSpiritus qui a Patre procedit
  51. 🔍 24% Alleluia laudate DominumAlleluia laudate Dominum
  52. 🔍 24% Exsultet iam angelicaExsultet iam angelica
  53. 🔍 24% In odoremIn odorem
  54. 🔍 24% Exspectabo DominumExspectabo Dominum
  55. 🔍 24% Alleluia. (Sat. P. T. at Lauds)Alleluia. (Sat. P. T. at Lauds)
  56. 🔍 24% Quaerite Dominum ... et vivetQuaerite Dominum ... et vivet
  57. 🔍 24% Regem Confessorum Dominum (t.p.)Regem Confessorum Dominum (t.p.)
  58. 🔍 24% Alleluia (Wednesday P. T. at Lauds)Alleluia (Wednesday P. T. at Lauds)
  59. 🔍 24% Regem Virginum Dominum (simpl.)Regem Virginum Dominum (simpl.)
  60. 🔍 23% Secundum misericordiamSecundum misericordiam
  61. 🔍 23% In Nativitate Domini - Cantus MartyrologiiIn Nativitate Domini - Cantus Martyrologii
  62. 🔍 23% Omnes GentesOmnes Gentes
  63. 🔍 23% Salus et gloriaSalus et gloria
  64. 🔍 23% Adversum meAdversum me
  65. 🔍 23% Praefatio de Dominicis per annum IVPraefatio de Dominicis per annum IV