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% JoannaJoanna
  2. 🔍 75% JoannaJoanna
  3. 🔍 31% PerpetuisPerpetuis
  4. 🔍 23% Gratias tibi ago Feb 18Gratias tibi ago Feb 18
  5. 🔍 23% Joannes autemJoannes autem
  6. 🔍 22% LaudantemLaudantem
  7. 🔍 22% Beata Dei Genitrix (Presentation)Beata Dei Genitrix (Presentation)
  8. 🔍 21% Custodivit eamCustodivit eam
  9. 🔍 21% Tu gloria JerusalemTu gloria Jerusalem
  10. 🔍 21% Alleluia. (Sund. P. T. at Terce)Alleluia. (Sund. P. T. at Terce)
  11. 🔍 21% Haec est JoannaHaec est Joanna
  12. 🔍 21% Et audientes discipuliEt audientes discipuli
  13. 🔍 21% Ite nuntiate fratribusIte nuntiate fratribus
  14. 🔍 21% Angelis suisAngelis suis
  15. 🔍 21% Fidelis DominusFidelis Dominus
  16. 🔍 21% Festivis resonent compitaFestivis resonent compita
  17. 🔍 21% MemorareMemorare
  18. 🔍 21% Laetare alma materLaetare alma mater
  19. 🔍 21% Fac benigne in bonaFac benigne in bona
  20. 🔍 21% Angelis suis DeusAngelis suis Deus
  21. 🔍 21% Alleluia. (Saturday P. T. at Vespers)Alleluia. (Saturday P. T. at Vespers)
  22. 🔍 20% Ave Maria... alleluiaAve Maria... alleluia
  23. 🔍 20% Alleluia faciem tuam. (Sundays throughout the year at None)Alleluia faciem tuam. (Sundays throughout the year at None)
  24. 🔍 20% Hodie gloriosaHodie gloriosa
  25. 🔍 20% Joannes autem cum audissetJoannes autem cum audisset
  26. 🔍 20% Salva nos DomineSalva nos Domine
  27. 🔍 20% Ad regias Agni dapesAd regias Agni dapes
  28. 🔍 20% Alleluia. (Sund. P. T. at Prime)Alleluia. (Sund. P. T. at Prime)
  29. 🔍 20% Ecce JoannaEcce Joanna
  30. 🔍 20% Benedicta es tuBenedicta es tu
  31. 🔍 20% Alleluia. (T.P. ad Completorium)Alleluia. (T.P. ad Completorium)
  32. 🔍 20% Ad regias Agni dapesAd regias Agni dapes
  33. 🔍 20% Missus est GabrielMissus est Gabriel
  34. 🔍 20% Vigilate animoVigilate animo
  35. 🔍 20% Excita DomineExcita Domine
  36. 🔍 20% Unum et verum in TrinitateUnum et verum in Trinitate
  37. 🔍 19% Alleluia. (Monday P. T. at Vespers)Alleluia. (Monday P. T. at Vespers)
  38. 🔍 19% Refulsit solRefulsit sol
  39. 🔍 19% Alleluia LaudateAlleluia Laudate
  40. 🔍 19% Gabriel Angelus... Ave.Gabriel Angelus... Ave.
  41. 🔍 19% Gabriel Angelus... AveGabriel Angelus... Ave
  42. 🔍 19% Miserere mihiMiserere mihi
  43. 🔍 19% A solis ortusA solis ortus
  44. 🔍 19% Vidi aquam (B)Vidi aquam (B)
  45. 🔍 19% Dum sacrum mysteriumDum sacrum mysterium
  46. 🔍 19% Alleluia. (Sund. P. T. at Sext)Alleluia. (Sund. P. T. at Sext)
  47. 🔍 19% Ait Dominus DeusAit Dominus Deus
  48. 🔍 19% Deus misereaturDeus misereatur
  49. 🔍 19% Laudemus caeliLaudemus caeli
  50. 🔍 19% Alleluia. (Friday P. T. at Vespers)Alleluia. (Friday P. T. at Vespers)
  51. 🔍 19% Ex quo facta estEx quo facta est
  52. 🔍 19% Deus dum egredererisDeus dum egredereris
  53. 🔍 19% Veni Redemptor gentiumVeni Redemptor gentium
  54. 🔍 19% Ista est speciosa (S. Mulierum)Ista est speciosa (S. Mulierum)
  55. 🔍 19% Speciosa facta esSpeciosa facta es
  56. 🔍 19% Redemisti nos Domine (Ant)Redemisti nos Domine (Ant)
  57. 🔍 19% Alleluia. (Wednesday P. T. at Vespers)Alleluia. (Wednesday P. T. at Vespers)
  58. 🔍 19% Iste sanctusIste sanctus
  59. 🔍 19% Gloria Patri VIIIGloria Patri VIII
  60. 🔍 19% Benedicta es tu VirgoBenedicta es tu Virgo
  61. 🔍 19% Benedicta es tu VirgoBenedicta es tu Virgo
  62. 🔍 19% Descendit Jesus cum eis (Ant.)Descendit Jesus cum eis (Ant.)
  63. 🔍 19% Speciosa facta es (Resp Br)Speciosa facta es (Resp Br)
  64. 🔍 19% Tu honorificentiaTu honorificentia
  65. 🔍 19% Aeterne Rex altissimeAeterne Rex altissime