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% In velamento clamabantIn velamento clamabant
  2. 🔍 92% In velamento clamabantIn velamento clamabant
  3. 🔍 68% In velamento clamabantIn velamento clamabant
  4. 🔍 48% In velamento clamabuntIn velamento clamabunt
  5. 🔍 44% Alleluia. (Wednesday P. T. at Vespers)Alleluia. (Wednesday P. T. at Vespers)
  6. 🔍 43% In caelestibus regnis... alleluiaIn caelestibus regnis... alleluia
  7. 🔍 43% Alleluia (T.P. in II nocturno)Alleluia (T.P. in II nocturno)
  8. 🔍 43% Alleluia (T. P. Vesp. Fer. IV.)Alleluia (T. P. Vesp. Fer. IV.)
  9. 🔍 43% Sancti tui DomineSancti tui Domine
  10. 🔍 42% Alleluia (mode 8)Alleluia (mode 8)
  11. 🔍 42% Alleluia (T.P. in III nocturno)Alleluia (T.P. in III nocturno)
  12. 🔍 42% Alleluia (T.P. ad Laudes)Alleluia (T.P. ad Laudes)
  13. 🔍 42% Alleluia (T.P. in I nocturno)Alleluia (T.P. in I nocturno)
  14. 🔍 42% Alleluia (mode 8)Alleluia (mode 8)
  15. 🔍 42% Alleluia LaudateAlleluia Laudate
  16. 🔍 42% Alleluia. (Sund. P. T. at Lauds I) Alleluia. (Sund. P. T. at Lauds I)
  17. 🔍 41% Alleluia (T.P. ad Vesperas)Alleluia (T.P. ad Vesperas)
  18. 🔍 40% Alleluia. (Sund. P. T. at Prime)Alleluia. (Sund. P. T. at Prime)
  19. 🔍 40% Alleluia. (Sund. P. T. at Terce)Alleluia. (Sund. P. T. at Terce)
  20. 🔍 40% Alleluia. (Monday P. T. at Vespers)Alleluia. (Monday P. T. at Vespers)
  21. 🔍 40% Alleluia. (Sund. P. T. at Sext)Alleluia. (Sund. P. T. at Sext)
  22. 🔍 40% Alleluia. (Saturday P. T. at Vespers)Alleluia. (Saturday P. T. at Vespers)
  23. 🔍 39% Alleluia Deduc meAlleluia Deduc me
  24. 🔍 39% AlleluiaAlleluia
  25. 🔍 39% Alleluia. (Thursday P. T. at Vespers)Alleluia. (Thursday P. T. at Vespers)
  26. 🔍 39% Alleluia (T. P. ad Tertiam)Alleluia (T. P. ad Tertiam)
  27. 🔍 39% Cognoverunt DominumCognoverunt Dominum
  28. 🔍 39% Alleluia (T. P. Laud. Fer. II.)Alleluia (T. P. Laud. Fer. II.)
  29. 🔍 39% Alleluia. (Friday P. T. at Vespers)Alleluia. (Friday P. T. at Vespers)
  30. 🔍 39% Alleluia (T. P. ad Primam)Alleluia (T. P. ad Primam)
  31. 🔍 39% Alleluia Lapis revolutusAlleluia Lapis revolutus
  32. 🔍 39% Alleluia (ant.)Alleluia (ant.)
  33. 🔍 39% Alleluia (ant.)Alleluia (ant.)
  34. 🔍 39% Alleluia deduc me. (Sundays throughout the year at Terce)Alleluia deduc me. (Sundays throughout the year at Terce)
  35. 🔍 39% Alleluia Tuus sumAlleluia Tuus sum
  36. 🔍 38% Alleluia (T. P. Laud. Fer. III.)Alleluia (T. P. Laud. Fer. III.)
  37. 🔍 38% Puer natus in BethlehemPuer natus in Bethlehem
  38. 🔍 38% Alleluia. (Tuesday P. T. at Vespers)Alleluia. (Tuesday P. T. at Vespers)
  39. 🔍 38% Alleluia (T.P. ad Nonam)Alleluia (T.P. ad Nonam)
  40. 🔍 38% Alleluia (T.P. ad Tertiam)Alleluia (T.P. ad Tertiam)
  41. 🔍 38% AlleluiaAlleluia
  42. 🔍 38% Alleluia (T. P. ad Sextam)Alleluia (T. P. ad Sextam)
  43. 🔍 38% Alleluia (T. P. Vesp. Fer. II.)Alleluia (T. P. Vesp. Fer. II.)
  44. 🔍 37% Notum fecit Dominus alleluiaNotum fecit Dominus alleluia
  45. 🔍 37% Alleluia (T. P. Laud. Fer. V.)Alleluia (T. P. Laud. Fer. V.)
  46. 🔍 37% Alleluia (T.P. Feria II ad Vesperas) Alleluia (T.P. Feria II ad Vesperas)
  47. 🔍 37% Alleluia (T.P. ad Sextam)Alleluia (T.P. ad Sextam)
  48. 🔍 37% Alleluia. (Sund. P. T. at Vespers)Alleluia. (Sund. P. T. at Vespers)
  49. 🔍 37% Alleluia (Complet. Dom. Resurr.)Alleluia (Complet. Dom. Resurr.)
  50. 🔍 37% Alleluia (T. P. Laud. Fer. IV.)Alleluia (T. P. Laud. Fer. IV.)
  51. 🔍 37% Gustate et videteGustate et videte
  52. 🔍 37% Surrexit Dominus vere (Resp. Br.)Surrexit Dominus vere (Resp. Br.)
  53. 🔍 37% Ave Maria (R. Br. T.P.)Ave Maria (R. Br. T.P.)
  54. 🔍 36% Alleluia Fer. IV T.P. IIAlleluia Fer. IV T.P. II
  55. 🔍 36% Alleluia (T. P. Laud. Dom.)Alleluia (T. P. Laud. Dom.)
  56. 🔍 36% Alleluia Omnes GentesAlleluia Omnes Gentes
  57. 🔍 36% In velamento clamaviIn velamento clamavi
  58. 🔍 36% Alleluia (T. P. Vesp. Fer. VI.)Alleluia (T. P. Vesp. Fer. VI.)
  59. 🔍 36% Alleluia Fer. II T.P. IAlleluia Fer. II T.P. I
  60. 🔍 36% Alleluia faciem tuam. (Sundays throughout the year at None)Alleluia faciem tuam. (Sundays throughout the year at None)
  61. 🔍 36% Alleluia. (Sund. P. T. at None)Alleluia. (Sund. P. T. at None)
  62. 🔍 36% Alleluia (T. P. ad Nonam)Alleluia (T. P. ad Nonam)
  63. 🔍 36% Lux de luceLux de luce
  64. 🔍 36% Alleluia Fer. III T.P. IAlleluia Fer. III T.P. I
  65. 🔍 36% Ipse invocabit meIpse invocabit me