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 (Feast tone)Before the ending of the day (Feast tone)
  2. 🔍 95% Before the ending of the day (Sunday tone)Before the ending of the day (Sunday tone)
  3. 🔍 93% Before the ending of the day (Epiphany tone)Before the ending of the day (Epiphany tone)
  4. 🔍 92% Before the ending of the day (Solemnity tone)Before the ending of the day (Solemnity tone)
  5. 🔍 91% Before the ending of the day (Advent tone)Before the ending of the day (Advent tone)
  6. 🔍 90% Before the ending of the day (ferial tone)Before the ending of the day (ferial tone)
  7. 🔍 89% 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. 🔍 30% Gloria (Introits tone 4)Gloria (Introits tone 4)
  10. 🔍 30% Gloria (Introits tone 5)Gloria (Introits tone 5)
  11. 🔍 30% Gloria (Introits tone 1)Gloria (Introits tone 1)
  12. 🔍 29% Gloria (Introits tone 3)Gloria (Introits tone 3)
  13. 🔍 28% Gloria (Introits tone 8)Gloria (Introits tone 8)
  14. 🔍 28% Gloria (Introits tone 7)Gloria (Introits tone 7)
  15. 🔍 27% Et valde mane (cum cantico Benedictus)Et valde mane (cum cantico Benedictus)
  16. 🔍 26% Ave Rex nosterAve Rex noster
  17. 🔍 26% Gloria (Introits tone 6)Gloria (Introits tone 6)
  18. 🔍 25% Gloria (Introits tone 2)Gloria (Introits tone 2)
  19. 🔍 24% Lauda Syon SalvatoremLauda Syon Salvatorem
  20. 🔍 24% Pueri Hebraeorum 2Pueri Hebraeorum 2
  21. 🔍 23% Adorna thalamumAdorna thalamum
  22. 🔍 22% Lumen HilareLumen Hilare
  23. 🔍 22% SuscepimusSuscepimus
  24. 🔍 22% Dicit DominusDicit Dominus
  25. 🔍 22% Domini est terraDomini est terra
  26. 🔍 22% SuscepimusSuscepimus
  27. 🔍 21% Gaudeamus ... AnnaGaudeamus ... Anna
  28. 🔍 21% Hodie scietisHodie scietis
  29. 🔍 21% Credo IIICredo III
  30. 🔍 21% Cum angelisCum angelis
  31. 🔍 21% Nunc scioNunc scio
  32. 🔍 21% Turba multaTurba multa
  33. 🔍 20% In splendoribusIn splendoribus
  34. 🔍 20% GloriaGloria
  35. 🔍 20% Deus IsraelDeus Israel
  36. 🔍 20% Gaudeamus ... AgathaGaudeamus ... Agatha
  37. 🔍 20% HosannaHosanna
  38. 🔍 20% Gaudeamus ... ConceptionGaudeamus ... Conception
  39. 🔍 20% Gaudeamus ... AssumptionGaudeamus ... Assumption
  40. 🔍 20% Occurrunt turbaeOccurrunt turbae
  41. 🔍 20% CoeperuntCoeperunt
  42. 🔍 20% Agnus (November 2)Agnus (November 2)
  43. 🔍 20% Calix benedictionisCalix benedictionis
  44. 🔍 19% Os justiOs justi
  45. 🔍 19% Crucem tuam adoramusCrucem tuam adoramus
  46. 🔍 19% Felices sensusFelices sensus
  47. 🔍 19% Stabat MaterStabat Mater
  48. 🔍 19% ExsultetExsultet
  49. 🔍 19% Omnes collaudantOmnes collaudant
  50. 🔍 19% Gaudeamus ... Mary MagdalenGaudeamus ... Mary Magdalen
  51. 🔍 19% Agnus Dei XIAgnus Dei XI
  52. 🔍 19% Beata visceraBeata viscera
  53. 🔍 19% De fructu operumDe fructu operum
  54. 🔍 19% Protector nosterProtector noster
  55. 🔍 18% Pueri Hebraeorum 1Pueri Hebraeorum 1
  56. 🔍 18% Gaudeamus ... ThomasGaudeamus ... Thomas
  57. 🔍 18% Dum venerit ParaclitusDum venerit Paraclitus
  58. 🔍 18% Domine Jesu ChristeDomine Jesu Christe
  59. 🔍 18% QuotiescumqueQuotiescumque
  60. 🔍 18% Spiritus DominiSpiritus Domini
  61. 🔍 18% Ex ore infantiumEx ore infantium
  62. 🔍 18% Da pacemDa pacem
  63. 🔍 18% EmendemusEmendemus
  64. 🔍 18% Misericordia DominiMisericordia Domini
  65. 🔍 18% In Nomine Jesu 2In Nomine Jesu 2