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% Ingresso ZachariaIngresso Zacharia
  2. 🔍 78% Ingresso Zacharia templumIngresso Zacharia templum
  3. 🔍 77% Ingresso Zacharia templumIngresso Zacharia templum
  4. 🔍 72% Ingresso ZachariaIngresso Zacharia
  5. 🔍 64% Ingresso ZachariaIngresso Zacharia
  6. 🔍 30% Factum est cum sacerdotioFactum est cum sacerdotio
  7. 🔍 28% O Doctor optime (nomina doctorum)O Doctor optime (nomina doctorum)
  8. 🔍 27% Missus est Gabriel AngelusMissus est Gabriel Angelus
  9. 🔍 25% Ecce nomen Domini EmmanuelEcce nomen Domini Emmanuel
  10. 🔍 25% Orante sancta LuciaOrante sancta Lucia
  11. 🔍 25% Angelus Gabriel apparuitAngelus Gabriel apparuit
  12. 🔍 24% O Doctor optime(Athanasi)O Doctor optime(Athanasi)
  13. 🔍 24% Hodie Christus natus estHodie Christus natus est
  14. 🔍 24% Ne timeasNe timeas
  15. 🔍 24% Ego plantaviEgo plantavi
  16. 🔍 23% Dixit autem Dominus servoDixit autem Dominus servo
  17. 🔍 23% Factum est autemFactum est autem
  18. 🔍 22% O Doctor Optime (nomina doctorum)O Doctor Optime (nomina doctorum)
  19. 🔍 22% Hodie Christus natus estHodie Christus natus est
  20. 🔍 22% Apertum est os ZachariaeApertum est os Zachariae
  21. 🔍 21% Beatus AndreasBeatus Andreas
  22. 🔍 21% Angelus Domini apparuit in somnisAngelus Domini apparuit in somnis
  23. 🔍 21% Benedictus Deus qui misitBenedictus Deus qui misit
  24. 🔍 21% Exaudisti Domine orationemExaudisti Domine orationem
  25. 🔍 21% Exaltata est Virgo MariaExaltata est Virgo Maria
  26. 🔍 21% O Rex gentiumO Rex gentium
  27. 🔍 21% Descendit Jesus cum eis (Ant.)Descendit Jesus cum eis (Ant.)
  28. 🔍 21% Exsultemus in Domino et spiritaliExsultemus in Domino et spiritali
  29. 🔍 21% Cum vocatus fuerisCum vocatus fueris
  30. 🔍 21% Mecum enimMecum enim
  31. 🔍 21% Si iniquitates (Ant)Si iniquitates (Ant)
  32. 🔍 20% Adaperiat DominusAdaperiat Dominus
  33. 🔍 20% Angelus Gabriel apparuitAngelus Gabriel apparuit
  34. 🔍 20% Orante sancto ClementeOrante sancto Clemente
  35. 🔍 20% Dixerunt mundi rectoresDixerunt mundi rectores
  36. 🔍 20% Intravit MariaIntravit Maria
  37. 🔍 20% Quem vidistis pastores diciteQuem vidistis pastores dicite
  38. 🔍 20% Gabriel Angelus... Ave.Gabriel Angelus... Ave.
  39. 🔍 19% Stans JesusStans Jesus
  40. 🔍 19% Ave MariaAve Maria
  41. 🔍 19% A bimatu et infraA bimatu et infra
  42. 🔍 19% Dixerunt discipuliDixerunt discipuli
  43. 🔍 19% Beata es MariaBeata es Maria
  44. 🔍 19% Ingressa AgnesIngressa Agnes
  45. 🔍 19% O radix JesseO radix Jesse
  46. 🔍 19% Angelus ad pastores aitAngelus ad pastores ait
  47. 🔍 19% Ascendit autem IosephAscendit autem Ioseph
  48. 🔍 19% O dignissima Christi sponsaO dignissima Christi sponsa
  49. 🔍 19% Deus meus es tuDeus meus es tu
  50. 🔍 19% Ego plantavi Apollo rigavitEgo plantavi Apollo rigavit
  51. 🔍 19% Ipse praeibit ante illumIpse praeibit ante illum
  52. 🔍 19% Missus est Gabriel AngelusMissus est Gabriel Angelus
  53. 🔍 19% Laetare Virgo MaterLaetare Virgo Mater
  54. 🔍 19% Ad te deAd te de
  55. 🔍 18% Respondens autem AngelusRespondens autem Angelus
  56. 🔍 18% Stans a longeStans a longe
  57. 🔍 18% Missus est Angelus Gabriel (19 Martii)Missus est Angelus Gabriel (19 Martii)
  58. 🔍 18% Missus est Angelus ... in civitatemMissus est Angelus ... in civitatem
  59. 🔍 18% Ecce nomen Domini EmmanuelEcce nomen Domini Emmanuel
  60. 🔍 18% Conversus estConversus est
  61. 🔍 18% O Doctor optimeO Doctor optime
  62. 🔍 18% Zachaee festinansZachaee festinans
  63. 🔍 18% Missus est Angelus Gabriel a Deo (In Sol. S. Joseph)Missus est Angelus Gabriel a Deo (In Sol. S. Joseph)
  64. 🔍 18% Aspice in meAspice in me
  65. 🔍 18% Ecce nomen Domini EmmanuelEcce nomen Domini Emmanuel