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% Before the ending of the day (Epiphany tone)Before the ending of the day (Epiphany tone)
  2. 🔍 94% Before the ending of the day (Sunday tone)Before the ending of the day (Sunday tone)
  3. 🔍 93% Before the ending of the day (Advent tone)Before the ending of the day (Advent tone)
  4. 🔍 93% Before the ending of the day (Feast tone)Before the ending of the day (Feast tone)
  5. 🔍 92% Before the ending of the day (Solemnity tone)Before the ending of the day (Solemnity tone)
  6. 🔍 89% Before the ending of the day (ferial tone)Before the ending of the day (ferial tone)
  7. 🔍 87% Before the ending of the day (Memorial tone)Before the ending of the day (Memorial tone)
  8. 🔍 86% Before the ending of the day (Memorials and Feasts of Our Lady)Before the ending of the day (Memorials and Feasts of Our Lady)
  9. 🔍 31% Gloria (Introits tone 5)Gloria (Introits tone 5)
  10. 🔍 29% Gloria (Introits tone 4)Gloria (Introits tone 4)
  11. 🔍 29% Gloria (Introits tone 1)Gloria (Introits tone 1)
  12. 🔍 29% Gloria (Introits tone 3)Gloria (Introits tone 3)
  13. 🔍 29% Gloria (Introits tone 7)Gloria (Introits tone 7)
  14. 🔍 28% Et valde mane (cum cantico Benedictus)Et valde mane (cum cantico Benedictus)
  15. 🔍 27% Ave Rex nosterAve Rex noster
  16. 🔍 27% Gloria (Introits tone 8)Gloria (Introits tone 8)
  17. 🔍 26% Gloria (Introits tone 2)Gloria (Introits tone 2)
  18. 🔍 26% Gloria (Introits tone 6)Gloria (Introits tone 6)
  19. 🔍 24% Pueri Hebraeorum 2Pueri Hebraeorum 2
  20. 🔍 23% Lauda Syon SalvatoremLauda Syon Salvatorem
  21. 🔍 22% Adorna thalamumAdorna thalamum
  22. 🔍 22% Lumen HilareLumen Hilare
  23. 🔍 22% HosannaHosanna
  24. 🔍 21% Domini est terraDomini est terra
  25. 🔍 21% Cum angelisCum angelis
  26. 🔍 21% Credo IIICredo III
  27. 🔍 21% CoeperuntCoeperunt
  28. 🔍 21% GloriaGloria
  29. 🔍 21% SuscepimusSuscepimus
  30. 🔍 21% Hodie scietisHodie scietis
  31. 🔍 21% Gaudeamus ... AnnaGaudeamus ... Anna
  32. 🔍 20% SuscepimusSuscepimus
  33. 🔍 20% Stabat MaterStabat Mater
  34. 🔍 20% Domine Jesu ChristeDomine Jesu Christe
  35. 🔍 20% Dum venerit ParaclitusDum venerit Paraclitus
  36. 🔍 20% ExsultetExsultet
  37. 🔍 20% In splendoribusIn splendoribus
  38. 🔍 20% Occurrunt turbaeOccurrunt turbae
  39. 🔍 20% Nunc scioNunc scio
  40. 🔍 20% EmendemusEmendemus
  41. 🔍 20% Calix benedictionisCalix benedictionis
  42. 🔍 19% Dominus DixitDominus Dixit
  43. 🔍 19% Agnus (November 2)Agnus (November 2)
  44. 🔍 19% Gaudeamus ... AgathaGaudeamus ... Agatha
  45. 🔍 19% Deus IsraelDeus Israel
  46. 🔍 19% Gaudeamus ... ConceptionGaudeamus ... Conception
  47. 🔍 19% Gaudeamus ... AssumptionGaudeamus ... Assumption
  48. 🔍 19% QuotiescumqueQuotiescumque
  49. 🔍 19% Os justiOs justi
  50. 🔍 19% Felices sensusFelices sensus
  51. 🔍 19% Dicit DominusDicit Dominus
  52. 🔍 19% Beata visceraBeata viscera
  53. 🔍 19% De fructu operumDe fructu operum
  54. 🔍 19% Ex ore infantiumEx ore infantium
  55. 🔍 19% SuscepimusSuscepimus
  56. 🔍 18% Justorum animaeJustorum animae
  57. 🔍 18% Libera me Domine de morteLibera me Domine de morte
  58. 🔍 18% Agnus Dei XIAgnus Dei XI
  59. 🔍 18% Gaudeamus ... Mary MagdalenGaudeamus ... Mary Magdalen
  60. 🔍 18% Omnes collaudantOmnes collaudant
  61. 🔍 18% Crastina dieCrastina die
  62. 🔍 18% Viderunt omnesViderunt omnes
  63. 🔍 18% Pueri Hebraeorum 1Pueri Hebraeorum 1
  64. 🔍 18% Spiritus DominiSpiritus Domini
  65. 🔍 18% Crucem tuam adoramusCrucem tuam adoramus