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% Spiritus quiSpiritus qui
  2. 🔍 74% Spiritus qui a PatreSpiritus qui a Patre
  3. 🔍 73% Spiritus quiSpiritus qui
  4. 🔍 66% Spiritus quiSpiritus qui
  5. 🔍 59% Spiritus qui a PatreSpiritus qui a Patre
  6. 🔍 56% Spiritus qui a Patre proceditSpiritus qui a Patre procedit
  7. 🔍 55% Spiritus qui a Patre proceditSpiritus qui a Patre procedit
  8. 🔍 49% Alleluia. (Sund. P. T. at Vespers)Alleluia. (Sund. P. T. at Vespers)
  9. 🔍 46% Alleluia (T.P. ad Vesperas)Alleluia (T.P. ad Vesperas)
  10. 🔍 46% Spiritus qui a PatreSpiritus qui a Patre
  11. 🔍 46% Alleluia. (Sund. P. T. at Terce)Alleluia. (Sund. P. T. at Terce)
  12. 🔍 46% Alleluia. (Tuesday P. T. at Vespers)Alleluia. (Tuesday P. T. at Vespers)
  13. 🔍 45% Alleluia (mode 8)Alleluia (mode 8)
  14. 🔍 45% Alleluia (T.P. in III nocturno)Alleluia (T.P. in III nocturno)
  15. 🔍 45% Alleluia (T.P. ad Laudes)Alleluia (T.P. ad Laudes)
  16. 🔍 45% Alleluia. (Thursday P. T. at Vespers)Alleluia. (Thursday P. T. at Vespers)
  17. 🔍 45% Alleluia (mode 8)Alleluia (mode 8)
  18. 🔍 45% Alleluia (T.P. in I nocturno)Alleluia (T.P. in I nocturno)
  19. 🔍 44% Alleluia (T.P. in II nocturno)Alleluia (T.P. in II nocturno)
  20. 🔍 44% Spiritus SanctusSpiritus Sanctus
  21. 🔍 43% Alleluia. (Monday P. T. at Vespers)Alleluia. (Monday P. T. at Vespers)
  22. 🔍 43% Lux de luceLux de luce
  23. 🔍 43% Si diligitis meSi diligitis me
  24. 🔍 43% Alleluia. (Friday P. T. at Vespers)Alleluia. (Friday P. T. at Vespers)
  25. 🔍 43% Alleluia LaudateAlleluia Laudate
  26. 🔍 43% Alleluia. (Sund. P. T. at Prime)Alleluia. (Sund. P. T. at Prime)
  27. 🔍 42% AlleluiaAlleluia
  28. 🔍 42% Alleluia Spiritus ParaclitusAlleluia Spiritus Paraclitus
  29. 🔍 42% Spiritus SanctusSpiritus Sanctus
  30. 🔍 42% Si diligitis meSi diligitis me
  31. 🔍 42% Alleluia (T. P. ad Primam)Alleluia (T. P. ad Primam)
  32. 🔍 42% Alleluia (T. P. ad Tertiam)Alleluia (T. P. ad Tertiam)
  33. 🔍 42% Gloria in excelsisGloria in excelsis
  34. 🔍 42% Alleluia. (Saturday P. T. at Vespers)Alleluia. (Saturday P. T. at Vespers)
  35. 🔍 42% AlleluiaAlleluia
  36. 🔍 42% Alleluia. (Wednesday P. T. at Vespers)Alleluia. (Wednesday P. T. at Vespers)
  37. 🔍 41% Alleluia (T.P. ad Nonam)Alleluia (T.P. ad Nonam)
  38. 🔍 41% Spiritus et animaeSpiritus et animae
  39. 🔍 41% Si manseritis in meSi manseritis in me
  40. 🔍 41% Alleluia (T.P. ad Tertiam)Alleluia (T.P. ad Tertiam)
  41. 🔍 41% Alleluia. (Sund. P. T. at Lauds I) Alleluia. (Sund. P. T. at Lauds I)
  42. 🔍 41% Alleluia (T.P. Feria II ad Vesperas) Alleluia (T.P. Feria II ad Vesperas)
  43. 🔍 40% Alleluia. (T.P. ad Completorium)Alleluia. (T.P. ad Completorium)
  44. 🔍 40% Puer natus in BethlehemPuer natus in Bethlehem
  45. 🔍 40% Alleluia Lapis revolutusAlleluia Lapis revolutus
  46. 🔍 40% Alleluia (T. P. Laud. Fer. V.)Alleluia (T. P. Laud. Fer. V.)
  47. 🔍 40% Alleluia. (Sund. P. T. at Sext)Alleluia. (Sund. P. T. at Sext)
  48. 🔍 40% Alleluia confitemini. (Sundays throughout the year at Prime)Alleluia confitemini. (Sundays throughout the year at Prime)
  49. 🔍 40% Alleluia (T. P. Laud. Fer. IV.)Alleluia (T. P. Laud. Fer. IV.)
  50. 🔍 40% Spiritus ParaclitusSpiritus Paraclitus
  51. 🔍 40% Factus estFactus est
  52. 🔍 40% Erat autem aspectusErat autem aspectus
  53. 🔍 40% Alleluia (T. P. Laud. Fer. II.)Alleluia (T. P. Laud. Fer. II.)
  54. 🔍 39% Alleluia (T. P. Vesp. Fer. II.)Alleluia (T. P. Vesp. Fer. II.)
  55. 🔍 39% Alleluia (T. P. Laud. Fer. III.)Alleluia (T. P. Laud. Fer. III.)
  56. 🔍 39% Alleluia (ant.)Alleluia (ant.)
  57. 🔍 39% Alleluia (ant.)Alleluia (ant.)
  58. 🔍 39% Ipse invocabit meIpse invocabit me
  59. 🔍 39% Alleluia (T. P. Laud. Dom.)Alleluia (T. P. Laud. Dom.)
  60. 🔍 39% Spiritus Domini replevitSpiritus Domini replevit
  61. 🔍 39% Spiritus Sanctus ... et virtusSpiritus Sanctus ... et virtus
  62. 🔍 39% Spiritus Domini replevitSpiritus Domini replevit
  63. 🔍 39% Spiritus Domini replevitSpiritus Domini replevit
  64. 🔍 39% Alleluia (T. P. Vesp. Fer. IV.)Alleluia (T. P. Vesp. Fer. IV.)
  65. 🔍 39% Videte manus measVidete manus meas