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% Ingresso Zacharia templumIngresso Zacharia templum
  2. 🔍 92% Ingresso Zacharia templumIngresso Zacharia templum
  3. 🔍 77% Ingresso ZachariaIngresso Zacharia
  4. 🔍 72% Ingresso ZachariaIngresso Zacharia
  5. 🔍 70% Ingresso ZachariaIngresso Zacharia
  6. 🔍 29% Factum est cum sacerdotioFactum est cum sacerdotio
  7. 🔍 27% O Doctor optime (nomina doctorum)O Doctor optime (nomina doctorum)
  8. 🔍 24% Angelus Gabriel apparuitAngelus Gabriel apparuit
  9. 🔍 23% Elisabeth ZachariaeElisabeth Zachariae
  10. 🔍 23% Ecce nomen Domini EmmanuelEcce nomen Domini Emmanuel
  11. 🔍 22% Missus est GabrielMissus est Gabriel
  12. 🔍 22% Missus est GabrielMissus est Gabriel
  13. 🔍 22% Factum est autemFactum est autem
  14. 🔍 22% Ne timeasNe timeas
  15. 🔍 22% Dum sacerdotum celebrant fidelesDum sacerdotum celebrant fideles
  16. 🔍 22% O Doctor optime(Athanasi)O Doctor optime(Athanasi)
  17. 🔍 21% Elisabeth Zachariae magnumElisabeth Zachariae magnum
  18. 🔍 21% Beata es MariaBeata es Maria
  19. 🔍 21% Ait autem AngelusAit autem Angelus
  20. 🔍 20% Beata es MariaBeata es Maria
  21. 🔍 20% Christe pastorum (Pro Episcopo)Christe pastorum (Pro Episcopo)
  22. 🔍 20% Angelus Domini apparuitAngelus Domini apparuit
  23. 🔍 20% Angelus Gabriel apparuitAngelus Gabriel apparuit
  24. 🔍 20% Gabriel Angelus... EcceGabriel Angelus... Ecce
  25. 🔍 20% Ne timeas Maria ... allel.Ne timeas Maria ... allel.
  26. 🔍 20% Christe pastorum (Pro Presbytero)Christe pastorum (Pro Presbytero)
  27. 🔍 20% Angelus Domini apparuit in somnisAngelus Domini apparuit in somnis
  28. 🔍 20% Christe pastorum (Pro Papa)Christe pastorum (Pro Papa)
  29. 🔍 20% O AdonaiO Adonai
  30. 🔍 20% Hodie Christus natus estHodie Christus natus est
  31. 🔍 20% Gabriel Angelus ... EcceGabriel Angelus ... Ecce
  32. 🔍 20% Stans JesusStans Jesus
  33. 🔍 19% Gabriel Angelus descenditGabriel Angelus descendit
  34. 🔍 19% O Doctor Optime (nomina doctorum)O Doctor Optime (nomina doctorum)
  35. 🔍 19% Ne timeas MariaNe timeas Maria
  36. 🔍 19% Dixit autem dominus servoDixit autem dominus servo
  37. 🔍 19% Missus est GabrielMissus est Gabriel
  38. 🔍 19% O Rex gentiumO Rex gentium
  39. 🔍 19% Ingressa AgnesIngressa Agnes
  40. 🔍 19% Surrexit Dominus vereSurrexit Dominus vere
  41. 🔍 19% Apertum est os ZachariaeApertum est os Zachariae
  42. 🔍 19% O Rex gentiumO Rex gentium
  43. 🔍 19% Ait autem AngelusAit autem Angelus
  44. 🔍 19% Mecum enim habeoMecum enim habeo
  45. 🔍 19% Gabriel AngelusGabriel Angelus
  46. 🔍 18% Missus est Angelus ... in civitatemMissus est Angelus ... in civitatem
  47. 🔍 18% Sacrificabo hostiamSacrificabo hostiam
  48. 🔍 18% Archangelus GabrielArchangelus Gabriel
  49. 🔍 18% Ego plantaviEgo plantavi
  50. 🔍 18% Venite exsultemus DVenite exsultemus D
  51. 🔍 18% In conspectu AngelorumIn conspectu Angelorum
  52. 🔍 18% Quid faciam quia dominusQuid faciam quia dominus
  53. 🔍 18% Data est mihiData est mihi
  54. 🔍 18% Ad te deAd te de
  55. 🔍 18% Dixit Dominus DominoDixit Dominus Domino
  56. 🔍 18% Surrexit Dominus vereSurrexit Dominus vere
  57. 🔍 18% Exaltata est Virgo MariaExaltata est Virgo Maria
  58. 🔍 18% Respondens autem AngelusRespondens autem Angelus
  59. 🔍 18% Orante sancta LuciaOrante sancta Lucia
  60. 🔍 18% Ego sum GabrielEgo sum Gabriel
  61. 🔍 18% Ecce nomen Domini EmmanuelEcce nomen Domini Emmanuel
  62. 🔍 18% Lauda Deum tuumLauda Deum tuum
  63. 🔍 18% Orante sancta LuciaOrante sancta Lucia
  64. 🔍 18% Apertum est os ZachariaeApertum est os Zachariae
  65. 🔍 18% Stans beata AgnesStans beata Agnes