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% Alleluia (ad offertorium mode 3)Alleluia (ad offertorium mode 3)
  2. 🔍 75% Alleluia (ad offertorium mode 4)Alleluia (ad offertorium mode 4)
  3. 🔍 66% Alleluia (ad offertorium mode 5)Alleluia (ad offertorium mode 5)
  4. 🔍 64% Alleluia (ad communionem mode 1)Alleluia (ad communionem mode 1)
  5. 🔍 57% Alleluia (ad offertorium mode 1)Alleluia (ad offertorium mode 1)
  6. 🔍 57% Alleluia (ad introitum mode 8)Alleluia (ad introitum mode 8)
  7. 🔍 55% Alleluia (ad communionem mode 3)Alleluia (ad communionem mode 3)
  8. 🔍 55% Alleluia (ad introitum mode 4)Alleluia (ad introitum mode 4)
  9. 🔍 55% Alleluia (ad introitum mode 6)Alleluia (ad introitum mode 6)
  10. 🔍 55% Alleluia (ad communionem mode 4)Alleluia (ad communionem mode 4)
  11. 🔍 54% Alleluia (ad communionem mode 6)Alleluia (ad communionem mode 6)
  12. 🔍 54% Alleluia (ad communionem mode 8)Alleluia (ad communionem mode 8)
  13. 🔍 54% Alleluia (ad communionem mode 2)Alleluia (ad communionem mode 2)
  14. 🔍 53% Alleluia (ad introitum mode 3)Alleluia (ad introitum mode 3)
  15. 🔍 51% Alleluia (ad introitum mode 7)Alleluia (ad introitum mode 7)
  16. 🔍 51% Alleluia (ad introitum mode 5)Alleluia (ad introitum mode 5)
  17. 🔍 51% Alleluia (ad introitum mode 2)Alleluia (ad introitum mode 2)
  18. 🔍 49% Alleluia (ad communionem mode 5)Alleluia (ad communionem mode 5)
  19. 🔍 46% Alleluia (ad communionem mode 7)Alleluia (ad communionem mode 7)
  20. 🔍 44% Alleluia (ad offertorium mode 3)Alleluia (ad offertorium mode 3)
  21. 🔍 37% Alleluia (ad offertorium mode 2)Alleluia (ad offertorium mode 2)
  22. 🔍 34% Alleluia (ad offertorium mode 6) Alleluia (ad offertorium mode 6)
  23. 🔍 34% Alleluia. (Wednesday P. T. at Vespers)Alleluia. (Wednesday P. T. at Vespers)
  24. 🔍 33% Alleluia (ad introitum mode 1)Alleluia (ad introitum mode 1)
  25. 🔍 33% Alleluia (ant. mode 4)Alleluia (ant. mode 4)
  26. 🔍 33% Alleluia (ant. mode 3)Alleluia (ant. mode 3)
  27. 🔍 32% Alleluia (modi communes post offertorium - I)Alleluia (modi communes post offertorium - I)
  28. 🔍 32% Alleluia (ant. mode 7)Alleluia (ant. mode 7)
  29. 🔍 32% Alleluia (ant. mode 8)Alleluia (ant. mode 8)
  30. 🔍 32% Alleluia (ant. mode 6)Alleluia (ant. mode 6)
  31. 🔍 31% Alleluia (modi communes post offertorium - IV)Alleluia (modi communes post offertorium - IV)
  32. 🔍 31% Alleluia. (T.P. ad Completorium)Alleluia. (T.P. ad Completorium)
  33. 🔍 31% Alleluia (ant. mode I)Alleluia (ant. mode I)
  34. 🔍 31% Alleluia (modi communes post officium - I)Alleluia (modi communes post officium - I)
  35. 🔍 31% Alleluia (ant. mode 5)Alleluia (ant. mode 5)
  36. 🔍 30% Alleluia (ad offertorium mode 7) Alleluia (ad offertorium mode 7)
  37. 🔍 30% Alleluia (ant. mode 2)Alleluia (ant. mode 2)
  38. 🔍 30% Alleluia (modi communes post offertorium - VI)Alleluia (modi communes post offertorium - VI)
  39. 🔍 29% Alleluia (T. P. Vesp. Fer. IV.)Alleluia (T. P. Vesp. Fer. IV.)
  40. 🔍 27% Alleluia (A)Alleluia (A)
  41. 🔍 27% Alleluia (modi communes post offertorium - VIII)Alleluia (modi communes post offertorium - VIII)
  42. 🔍 27% Alleluia (modi communes post offertorium - III)Alleluia (modi communes post offertorium - III)
  43. 🔍 26% Alleluia. (Monday P. T. at Vespers)Alleluia. (Monday P. T. at Vespers)
  44. 🔍 26% Alleluia. (Friday P. T. at Vespers)Alleluia. (Friday P. T. at Vespers)
  45. 🔍 26% Alleluia. (Thursday P. T. at Vespers)Alleluia. (Thursday P. T. at Vespers)
  46. 🔍 26% Alleluia (modi communes post officium - VI)Alleluia (modi communes post officium - VI)
  47. 🔍 26% Alleluia. (Sund. P. T. at Prime)Alleluia. (Sund. P. T. at Prime)
  48. 🔍 26% Alleluia. (Tuesday P. T. at Vespers)Alleluia. (Tuesday P. T. at Vespers)
  49. 🔍 26% Alleluia. (Sund. P. T. at Vespers)Alleluia. (Sund. P. T. at Vespers)
  50. 🔍 26% Alleluia. (Sund. P. T. at Terce)Alleluia. (Sund. P. T. at Terce)
  51. 🔍 26% Alleluia (modi communes post offertorium - VII)Alleluia (modi communes post offertorium - VII)
  52. 🔍 26% Alleluia (mode 8)Alleluia (mode 8)
  53. 🔍 26% Alleluia (modi communes post officium - VIII)Alleluia (modi communes post officium - VIII)
  54. 🔍 25% Alleluia. (Saturday P. T. at Vespers)Alleluia. (Saturday P. T. at Vespers)
  55. 🔍 25% Alleluia (ad offertorium mode 8) Alleluia (ad offertorium mode 8)
  56. 🔍 25% Alleluia alleluia alleluia (Dom. ad Laudes)Alleluia alleluia alleluia (Dom. ad Laudes)
  57. 🔍 25% Alleluia (modi communes post offertorium - II)Alleluia (modi communes post offertorium - II)
  58. 🔍 25% Deus in adjutorium (Ps.69 - Textus antiquus)Deus in adjutorium (Ps.69 - Textus antiquus)
  59. 🔍 24% Alleluia (modi communes post officium - VII)Alleluia (modi communes post officium - VII)
  60. 🔍 24% Alleluia. (Sund. P. T. at Sext)Alleluia. (Sund. P. T. at Sext)
  61. 🔍 24% Dominus vobiscum (Toni Orationem: Tonus festivus.)Dominus vobiscum (Toni Orationem: Tonus festivus.)
  62. 🔍 24% Alleluia (modi communes post officium - IV)Alleluia (modi communes post officium - IV)
  63. 🔍 24% Alleluia alleluiaAlleluia alleluia
  64. 🔍 24% Ite IaIte Ia
  65. 🔍 24% Spiritus quiSpiritus qui