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% A solis ortuA solis ortu
  2. 🔍 77% A solis ortuA solis ortu
  3. 🔍 77% A solis ortuA solis ortu
  4. 🔍 71% A solis ortuA solis ortu
  5. 🔍 71% A solis ortuA solis ortu
  6. 🔍 51% A solis ortuA solis ortu
  7. 🔍 51% A solis ortu usque ad occasumA solis ortu usque ad occasum
  8. 🔍 29% A solis ortu (Resp.)A solis ortu (Resp.)
  9. 🔍 28% Ab ortu solisAb ortu solis
  10. 🔍 26% Commune vos apostoliCommune vos apostoli
  11. 🔍 26% Gloria XIIGloria XII
  12. 🔍 26% Gloria IVGloria IV
  13. 🔍 26% Gloria XIIIGloria XIII
  14. 🔍 25% Apostolorum passio diemApostolorum passio diem
  15. 🔍 25% Qui luce splendesQui luce splendes
  16. 🔍 25% Cohors beata SeraphimCohors beata Seraphim
  17. 🔍 25% Te nostra laetisTe nostra laetis
  18. 🔍 25% Exsultet caelum laudibus (modus 4)Exsultet caelum laudibus (modus 4)
  19. 🔍 25% Mater ChristiMater Christi
  20. 🔍 25% Qui luce splendesQui luce splendes
  21. 🔍 24% Dicamus laudes DominoDicamus laudes Domino
  22. 🔍 24% Praeclara qua tu gloriaPraeclara qua tu gloria
  23. 🔍 24% Gloria XIGloria XI
  24. 🔍 24% Gloria VIIGloria VII
  25. 🔍 24% ConvocatisConvocatis
  26. 🔍 24% Gloria IGloria I
  27. 🔍 24% SanctificavitSanctificavit
  28. 🔍 24% Angularis fundamentumAngularis fundamentum
  29. 🔍 24% Ternis horarum terminisTernis horarum terminis
  30. 🔍 24% Ales diei nuntius (aestivalis)Ales diei nuntius (aestivalis)
  31. 🔍 24% Gloria XI (forma ordinaria)Gloria XI (forma ordinaria)
  32. 🔍 24% Juvenes... laudateJuvenes... laudate
  33. 🔍 24% Fulgentis auctor aetherisFulgentis auctor aetheris
  34. 🔍 23% Commune vos apostoliCommune vos apostoli
  35. 🔍 23% Te lucis ante terminum (Tempus Adventus)Te lucis ante terminum (Tempus Adventus)
  36. 🔍 23% Aeterna caeli gloriaAeterna caeli gloria
  37. 🔍 23% Ales diei nuntiusAles diei nuntius
  38. 🔍 23% Ales diei nuntiusAles diei nuntius
  39. 🔍 23% Captator olim pisciumCaptator olim piscium
  40. 🔍 23% Gloria VIGloria VI
  41. 🔍 23% LaudamusLaudamus
  42. 🔍 23% Relucens inter principesRelucens inter principes
  43. 🔍 23% Sol et lunaSol et luna
  44. 🔍 23% Certum tenentes ordinemCertum tenentes ordinem
  45. 🔍 23% Certum tenentes ordinemCertum tenentes ordinem
  46. 🔍 23% Magnus DominusMagnus Dominus
  47. 🔍 23% Magnus DominusMagnus Dominus
  48. 🔍 23% Vexilla Regis (Inventio Sanctae Crucis)Vexilla Regis (Inventio Sanctae Crucis)
  49. 🔍 23% Christe qui splendor (Tempore Adventus post diem 16 decembris)Christe qui splendor (Tempore Adventus post diem 16 decembris)
  50. 🔍 23% Gloria IIIGloria III
  51. 🔍 22% Certum tenentes ordinem (T Adventus)Certum tenentes ordinem (T Adventus)
  52. 🔍 22% Angularis fundamentumAngularis fundamentum
  53. 🔍 22% Vexilla Regis (Tempore Passionis)Vexilla Regis (Tempore Passionis)
  54. 🔍 22% Vexilla Regis (Tempus Passionis)Vexilla Regis (Tempus Passionis)
  55. 🔍 22% Praefatio solemnis de sancto Elia ProphetaPraefatio solemnis de sancto Elia Propheta
  56. 🔍 22% Gloria XVGloria XV
  57. 🔍 22% Vexilla Regis (Exaltatio Sanctae Crucis)Vexilla Regis (Exaltatio Sanctae Crucis)
  58. 🔍 22% Te lucis ante terminum (In Adventu)Te lucis ante terminum (In Adventu)
  59. 🔍 22% Gloria VGloria V
  60. 🔍 22% Nox et tenebrae (in Aestate)Nox et tenebrae (in Aestate)
  61. 🔍 22% Gloria IGloria I
  62. 🔍 22% Aeterna caeli gloria (aestivalis)Aeterna caeli gloria (aestivalis)
  63. 🔍 22% Vexilla Regis (with all original stanzas)Vexilla Regis (with all original stanzas)
  64. 🔍 22% Aeterna caeli gloria (in Aestate)Aeterna caeli gloria (in Aestate)
  65. 🔍 22% Praefatio in Praesentatione DominiPraefatio in Praesentatione Domini