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% Parvulus filiusParvulus filius
  2. 🔍 77% Parvulus filiusParvulus filius
  3. 🔍 71% Parvulus filiusParvulus filius
  4. 🔍 69% Parvulus filiusParvulus filius
  5. 🔍 58% Parvulus filiusParvulus filius
  6. 🔍 56% Parvulus filiusParvulus filius
  7. 🔍 36% Alleluia ConfiteminiAlleluia Confitemini
  8. 🔍 35% Alleluia (mode 8)Alleluia (mode 8)
  9. 🔍 34% Alleluia (T. P. Vesp. Sabb.)Alleluia (T. P. Vesp. Sabb.)
  10. 🔍 33% Alleluia (T.P. in III nocturno)Alleluia (T.P. in III nocturno)
  11. 🔍 33% Alleluia Omnes GentesAlleluia Omnes Gentes
  12. 🔍 33% Alleluia (mode 8)Alleluia (mode 8)
  13. 🔍 33% Alleluia (T.P. in I nocturno)Alleluia (T.P. in I nocturno)
  14. 🔍 33% Sancti et justi in DominoSancti et justi in Domino
  15. 🔍 33% Sancti et justi in DominoSancti et justi in Domino
  16. 🔍 32% Alleluia (T.P. ad Vesperas)Alleluia (T.P. ad Vesperas)
  17. 🔍 32% Alleluia (T. P. ad Tertiam)Alleluia (T. P. ad Tertiam)
  18. 🔍 32% Christus Dei FiliusChristus Dei Filius
  19. 🔍 32% Alleluia (T.P. ad Laudes)Alleluia (T.P. ad Laudes)
  20. 🔍 32% Alleluia (T. P. ad Primam)Alleluia (T. P. ad Primam)
  21. 🔍 32% Alleluia (T. P. Complet.)Alleluia (T. P. Complet.)
  22. 🔍 32% Alleluia (T. P. Complet.)Alleluia (T. P. Complet.)
  23. 🔍 32% Alleluia LaudateAlleluia Laudate
  24. 🔍 32% Alleluia (T.P. in II nocturno)Alleluia (T.P. in II nocturno)
  25. 🔍 32% Alleluia (T.P. Feria II ad Vesperas) Alleluia (T.P. Feria II ad Vesperas)
  26. 🔍 32% Puer natus in BethlehemPuer natus in Bethlehem
  27. 🔍 31% Beata es MariaBeata es Maria
  28. 🔍 31% Alleluia. (Sund. P. T. at Lauds I) Alleluia. (Sund. P. T. at Lauds I)
  29. 🔍 31% Si manseritis in meSi manseritis in me
  30. 🔍 31% Alleluia (T. P. Laud. Dom.)Alleluia (T. P. Laud. Dom.)
  31. 🔍 31% Beata es MariaBeata es Maria
  32. 🔍 31% Alleluia (T. P. Vesp. Dom.)Alleluia (T. P. Vesp. Dom.)
  33. 🔍 31% Omnes GentesOmnes Gentes
  34. 🔍 31% Alleluia (T. P. Laud. Fer. V.)Alleluia (T. P. Laud. Fer. V.)
  35. 🔍 31% Alleluia (T. P. Laud. Fer. IV.)Alleluia (T. P. Laud. Fer. IV.)
  36. 🔍 31% Ite nuntiate fratribusIte nuntiate fratribus
  37. 🔍 31% Alleluia (T.P. ad Nonam)Alleluia (T.P. ad Nonam)
  38. 🔍 31% Amplificatus est (T.P.)Amplificatus est (T.P.)
  39. 🔍 31% AlleluiaAlleluia
  40. 🔍 30% Alleluia Lapis revolutusAlleluia Lapis revolutus
  41. 🔍 30% Alleluia (Complet. Dom. Resurr.)Alleluia (Complet. Dom. Resurr.)
  42. 🔍 30% Alleluia (T. P. Vesp. Fer. II.)Alleluia (T. P. Vesp. Fer. II.)
  43. 🔍 30% Alleluia (T. P. Laud. Fer. III.)Alleluia (T. P. Laud. Fer. III.)
  44. 🔍 30% Alleluia (T. P. Laud. Fer. VI.)Alleluia (T. P. Laud. Fer. VI.)
  45. 🔍 30% Hodie scietisHodie scietis
  46. 🔍 30% Alleluia (T. P. Vesp. Fer. IV.)Alleluia (T. P. Vesp. Fer. IV.)
  47. 🔍 30% Verbum caro factum estVerbum caro factum est
  48. 🔍 30% Alleluia (T. P. Vesp. Fer. VI.)Alleluia (T. P. Vesp. Fer. VI.)
  49. 🔍 30% Alleluia (T. P. Vesp. Fer. III.)Alleluia (T. P. Vesp. Fer. III.)
  50. 🔍 30% Regina caeli (Officium Parvum)Regina caeli (Officium Parvum)
  51. 🔍 30% Spiritus et animaeSpiritus et animae
  52. 🔍 29% Alleluia (T.P. ad Tertiam)Alleluia (T.P. ad Tertiam)
  53. 🔍 29% Angelus Domini nuntiavit (Resp. Br. T.P.)Angelus Domini nuntiavit (Resp. Br. T.P.)
  54. 🔍 29% Alleluia (T.P. ad Sextam)Alleluia (T.P. ad Sextam)
  55. 🔍 29% Gloria in excelsisGloria in excelsis
  56. 🔍 29% Ne timeas MariaNe timeas Maria
  57. 🔍 29% Alleluia (T. P. ad Sextam)Alleluia (T. P. ad Sextam)
  58. 🔍 29% Alleluia Fer. VI T.P. IAlleluia Fer. VI T.P. I
  59. 🔍 29% Ave Maria (R. Br. T.P.)Ave Maria (R. Br. T.P.)
  60. 🔍 29% Audi filia et vide (Resp. Br. T.P.)Audi filia et vide (Resp. Br. T.P.)
  61. 🔍 29% Alleluia Tuus sumAlleluia Tuus sum
  62. 🔍 29% Alleluia (T. P. Vesp. Dom.)Alleluia (T. P. Vesp. Dom.)
  63. 🔍 29% Alleluia (Per Hebdomadam ad Sextam T.P.)Alleluia (Per Hebdomadam ad Sextam T.P.)
  64. 🔍 29% Verbum caro factum estVerbum caro factum est
  65. 🔍 29% Regina caeli (Off. BMV in Sab. T.P.)Regina caeli (Off. BMV in Sab. T.P.)