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 (Memorial tone)Before the ending of the day (Memorial tone)
  2. 🔍 93% Before the ending of the day (ferial tone)Before the ending of the day (ferial tone)
  3. 🔍 89% Before the ending of the day (Sunday tone)Before the ending of the day (Sunday tone)
  4. 🔍 89% Before the ending of the day (Feast tone)Before the ending of the day (Feast tone)
  5. 🔍 87% Before the ending of the day (Epiphany tone)Before the ending of the day (Epiphany tone)
  6. 🔍 86% Before the ending of the day (Solemnity tone)Before the ending of the day (Solemnity tone)
  7. 🔍 86% Before the ending of the day (Advent tone)Before the ending of the day (Advent tone)
  8. 🔍 82% 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. 🔍 33% Et valde mane (cum cantico Benedictus)Et valde mane (cum cantico Benedictus)
  10. 🔍 28% Ave Rex nosterAve Rex noster
  11. 🔍 28% Gloria (Introits tone 4)Gloria (Introits tone 4)
  12. 🔍 28% Gloria (Introits tone 5)Gloria (Introits tone 5)
  13. 🔍 28% Gloria (Introits tone 3)Gloria (Introits tone 3)
  14. 🔍 27% Gloria (Introits tone 2)Gloria (Introits tone 2)
  15. 🔍 27% Gloria (Introits tone 6)Gloria (Introits tone 6)
  16. 🔍 27% Gloria (Introits tone 8)Gloria (Introits tone 8)
  17. 🔍 26% Gloria (Introits tone 7)Gloria (Introits tone 7)
  18. 🔍 26% Lauda Syon SalvatoremLauda Syon Salvatorem
  19. 🔍 25% Gloria (Introits tone 1)Gloria (Introits tone 1)
  20. 🔍 25% Pueri Hebraeorum 2Pueri Hebraeorum 2
  21. 🔍 25% Hodie scietisHodie scietis
  22. 🔍 24% Adorna thalamumAdorna thalamum
  23. 🔍 23% Credo IIICredo III
  24. 🔍 23% SuscepimusSuscepimus
  25. 🔍 23% Gaudeamus ... AnnaGaudeamus ... Anna
  26. 🔍 23% Lumen HilareLumen Hilare
  27. 🔍 23% Domini est terraDomini est terra
  28. 🔍 23% SuscepimusSuscepimus
  29. 🔍 22% GloriaGloria
  30. 🔍 22% Gaudeamus ... AgathaGaudeamus ... Agatha
  31. 🔍 22% Gaudeamus ... ConceptionGaudeamus ... Conception
  32. 🔍 22% Gaudeamus ... AssumptionGaudeamus ... Assumption
  33. 🔍 21% Cum angelisCum angelis
  34. 🔍 21% HosannaHosanna
  35. 🔍 21% Libera me Domine de morteLibera me Domine de morte
  36. 🔍 21% Viderunt omnesViderunt omnes
  37. 🔍 21% In splendoribusIn splendoribus
  38. 🔍 21% EmendemusEmendemus
  39. 🔍 21% Stabat MaterStabat Mater
  40. 🔍 21% Gaudeamus ... Mary MagdalenGaudeamus ... Mary Magdalen
  41. 🔍 21% Ex ore infantiumEx ore infantium
  42. 🔍 20% CoeperuntCoeperunt
  43. 🔍 20% Agnus (November 2)Agnus (November 2)
  44. 🔍 20% ExsultetExsultet
  45. 🔍 20% Occurrunt turbaeOccurrunt turbae
  46. 🔍 20% Nunc scioNunc scio
  47. 🔍 20% Protector nosterProtector noster
  48. 🔍 20% Calix benedictionisCalix benedictionis
  49. 🔍 20% Deus IsraelDeus Israel
  50. 🔍 20% Ave Maria (Hail Mary)Ave Maria (Hail Mary)
  51. 🔍 20% Gaudeamus ... ThomasGaudeamus ... Thomas
  52. 🔍 20% Os justiOs justi
  53. 🔍 20% Felices sensusFelices sensus
  54. 🔍 19% In Nomine Jesu 2In Nomine Jesu 2
  55. 🔍 19% SuscepimusSuscepimus
  56. 🔍 19% Domine Jesu ChristeDomine Jesu Christe
  57. 🔍 19% Dum venerit ParaclitusDum venerit Paraclitus
  58. 🔍 19% Omnes collaudantOmnes collaudant
  59. 🔍 19% QuotiescumqueQuotiescumque
  60. 🔍 19% Dicit DominusDicit Dominus
  61. 🔍 19% Salve ReginaSalve Regina
  62. 🔍 19% Beata visceraBeata viscera
  63. 🔍 19% ConcepcioConcepcio
  64. 🔍 19% De fructu operumDe fructu operum
  65. 🔍 19% Crucem tuam adoramusCrucem tuam adoramus