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% Ipse invocabit meIpse invocabit me
  2. 🔍 73% Ipse invocabit meIpse invocabit me
  3. 🔍 71% Ipse invocabit meIpse invocabit me
  4. 🔍 63% Ipse invocabit meIpse invocabit me
  5. 🔍 59% Ipse invocabit meIpse invocabit me
  6. 🔍 41% Alleluia. (Wednesday P. T. at Vespers)Alleluia. (Wednesday P. T. at Vespers)
  7. 🔍 40% AlleluiaAlleluia
  8. 🔍 40% Alleluia (mode 8)Alleluia (mode 8)
  9. 🔍 39% Spiritus quiSpiritus qui
  10. 🔍 39% Si manseritis in meSi manseritis in me
  11. 🔍 39% Alleluia. (Monday P. T. at Vespers)Alleluia. (Monday P. T. at Vespers)
  12. 🔍 39% Si diligitis meSi diligitis me
  13. 🔍 39% Alleluia (T.P. in III nocturno)Alleluia (T.P. in III nocturno)
  14. 🔍 39% Alleluia. (Friday P. T. at Vespers)Alleluia. (Friday P. T. at Vespers)
  15. 🔍 39% Alleluia. (Thursday P. T. at Vespers)Alleluia. (Thursday P. T. at Vespers)
  16. 🔍 39% Alleluia (T.P. in I nocturno)Alleluia (T.P. in I nocturno)
  17. 🔍 39% Alleluia (mode 8)Alleluia (mode 8)
  18. 🔍 38% Alleluia (T.P. ad Laudes)Alleluia (T.P. ad Laudes)
  19. 🔍 38% Alleluia (T.P. in II nocturno)Alleluia (T.P. in II nocturno)
  20. 🔍 38% Alleluia LaudateAlleluia Laudate
  21. 🔍 38% Notum fecit Dominus alleluiaNotum fecit Dominus alleluia
  22. 🔍 38% Alleluia. (Sund. P. T. at Terce)Alleluia. (Sund. P. T. at Terce)
  23. 🔍 38% Alleluia (T.P. ad Vesperas)Alleluia (T.P. ad Vesperas)
  24. 🔍 38% Alleluia. (Tuesday P. T. at Vespers)Alleluia. (Tuesday P. T. at Vespers)
  25. 🔍 38% Alleluia. (Sund. P. T. at Prime)Alleluia. (Sund. P. T. at Prime)
  26. 🔍 37% Alleluia. (Saturday P. T. at Vespers)Alleluia. (Saturday P. T. at Vespers)
  27. 🔍 37% Ipse enim PaterIpse enim Pater
  28. 🔍 36% AlleluiaAlleluia
  29. 🔍 36% In velamento clamabantIn velamento clamabant
  30. 🔍 36% Alleluia Tuus sumAlleluia Tuus sum
  31. 🔍 36% Alleluia. (Paschal Vigil at Lauds)Alleluia. (Paschal Vigil at Lauds)
  32. 🔍 36% Alleluia. (Sund. P. T. at Lauds I) Alleluia. (Sund. P. T. at Lauds I)
  33. 🔍 36% Alleluia. (Sund. P. T. at Sext)Alleluia. (Sund. P. T. at Sext)
  34. 🔍 35% Alleluia (T.P. Feria II ad Vesperas) Alleluia (T.P. Feria II ad Vesperas)
  35. 🔍 35% Alleluia (T.P. ad Nonam)Alleluia (T.P. ad Nonam)
  36. 🔍 35% Alleluia (T.P. ad Tertiam)Alleluia (T.P. ad Tertiam)
  37. 🔍 35% Videte manus measVidete manus meas
  38. 🔍 35% Alleluia Omnes GentesAlleluia Omnes Gentes
  39. 🔍 35% Alleluia (T. P. Vesp. Fer. IV.)Alleluia (T. P. Vesp. Fer. IV.)
  40. 🔍 35% Alleluia (T. P. Laud. Fer. II.)Alleluia (T. P. Laud. Fer. II.)
  41. 🔍 35% Alleluia Lapis revolutusAlleluia Lapis revolutus
  42. 🔍 35% Puer natus in BethlehemPuer natus in Bethlehem
  43. 🔍 34% Alleluia (T. P. ad Tertiam)Alleluia (T. P. ad Tertiam)
  44. 🔍 34% Alleluia tuus sum ego. (Sundays throughout the year at Sext)Alleluia tuus sum ego. (Sundays throughout the year at Sext)
  45. 🔍 34% Alleluia alleluia alleluia (Dominica ad Primam)Alleluia alleluia alleluia (Dominica ad Primam)
  46. 🔍 34% Cognoverunt DominumCognoverunt Dominum
  47. 🔍 34% Alleluia. (Sund. P. T. at Vespers)Alleluia. (Sund. P. T. at Vespers)
  48. 🔍 34% Alleluia deduc me. (Sundays throughout the year at Terce)Alleluia deduc me. (Sundays throughout the year at Terce)
  49. 🔍 34% Alleluia (T. P. ad Primam)Alleluia (T. P. ad Primam)
  50. 🔍 34% Alleluia alleluia alleluia alleluia (TP ad Nonam)Alleluia alleluia alleluia alleluia (TP ad Nonam)
  51. 🔍 34% Exaudivit cum AlleluiaExaudivit cum Alleluia
  52. 🔍 34% Alleluia alleluia alleluia alleluia (TP ad Sextam)Alleluia alleluia alleluia alleluia (TP ad Sextam)
  53. 🔍 34% Alleluia Fer. V T.P. IAlleluia Fer. V T.P. I
  54. 🔍 34% Alleluia (ant.)Alleluia (ant.)
  55. 🔍 34% Alleluia (ant.)Alleluia (ant.)
  56. 🔍 34% Alleluia alleluia alleluia alleluia (TP ad Tertiam)Alleluia alleluia alleluia alleluia (TP ad Tertiam)
  57. 🔍 34% Spiritus quiSpiritus qui
  58. 🔍 34% Alleluia. (T.P. ad Completorium)Alleluia. (T.P. ad Completorium)
  59. 🔍 34% Alleluia Fer. IV T.P. IAlleluia Fer. IV T.P. I
  60. 🔍 33% Omnes GentesOmnes Gentes
  61. 🔍 33% Eduxit eosEduxit eos
  62. 🔍 33% Emitte spiritumEmitte spiritum
  63. 🔍 33% Alleluia. (Monday P. T. at Lauds)Alleluia. (Monday P. T. at Lauds)
  64. 🔍 33% AccipiteAccipite
  65. 🔍 33% Alleluia Fer. III T.P. IAlleluia Fer. III T.P. I