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% Requiem (Intr.)Requiem (Intr.)
  2. 🔍 59% Requiem (Intr.)Requiem (Intr.)
  3. 🔍 51% Requiem (Intr.)Requiem (Intr.)
  4. 🔍 50% Requiem (Officium)Requiem (Officium)
  5. 🔍 38% RequiemRequiem
  6. 🔍 33% Requiem (Ant.)Requiem (Ant.)
  7. 🔍 33% Lux aeternaLux aeterna
  8. 🔍 33% RequiemRequiem
  9. 🔍 31% Miserere mei... secundumMiserere mei... secundum
  10. 🔍 31% RequiemRequiem
  11. 🔍 29% Lux aeternaLux aeterna
  12. 🔍 29% Requiem (simple)Requiem (simple)
  13. 🔍 29% Miserere (Ps 50)Miserere (Ps 50)
  14. 🔍 29% O castitatis signiferO castitatis signifer
  15. 🔍 29% Venite exultemus IV GVenite exultemus IV G
  16. 🔍 28% O lux beata Trinitas (aestivalis)O lux beata Trinitas (aestivalis)
  17. 🔍 27% Exsultet jam AngelicaExsultet jam Angelica
  18. 🔍 27% Miserere mei Deus (cantus prior)Miserere mei Deus (cantus prior)
  19. 🔍 27% O lux beata Trinitas (aestivalis)O lux beata Trinitas (aestivalis)
  20. 🔍 27% Tu Trinitatis UnitasTu Trinitatis Unitas
  21. 🔍 27% Venite exsultemus (pro defunc.)Venite exsultemus (pro defunc.)
  22. 🔍 27% Audit tyrannus anxiusAudit tyrannus anxius
  23. 🔍 27% Gloria VIIGloria VII
  24. 🔍 27% Lux aeternaLux aeterna
  25. 🔍 26% Praefatio solemnis de Ecclesiae DedicationePraefatio solemnis de Ecclesiae Dedicatione
  26. 🔍 26% Nullis te genitorNullis te genitor
  27. 🔍 26% Immensa et unaImmensa et una
  28. 🔍 26% O lux beata TrinitasO lux beata Trinitas
  29. 🔍 26% Summae Deus (in festo SS. Trinitatis)Summae Deus (in festo SS. Trinitatis)
  30. 🔍 25% Lux aeternaLux aeterna
  31. 🔍 25% Felix namque esFelix namque es
  32. 🔍 25% Veni Redemptor gentiumVeni Redemptor gentium
  33. 🔍 25% Inclina cor meumInclina cor meum
  34. 🔍 25% Credo IICredo II
  35. 🔍 25% Venite exsultemus VI*Venite exsultemus VI*
  36. 🔍 25% Praefatio in Sollemnitate Sanctissimae TrinitatisPraefatio in Sollemnitate Sanctissimae Trinitatis
  37. 🔍 25% Pie Jesu DominePie Jesu Domine
  38. 🔍 25% Venite exsultemus (mode 6a simplex)Venite exsultemus (mode 6a simplex)
  39. 🔍 25% Jesu nostra redemptioJesu nostra redemptio
  40. 🔍 25% Factum est in unaFactum est in una
  41. 🔍 24% O lux beata TrinitasO lux beata Trinitas
  42. 🔍 24% Lux aeternaLux aeterna
  43. 🔍 24% Omnes gentes plaudite (Intr)Omnes gentes plaudite (Intr)
  44. 🔍 24% Credo I.Credo I.
  45. 🔍 24% Deus in nomine tuoDeus in nomine tuo
  46. 🔍 24% Repleti suntRepleti sunt
  47. 🔍 24% Prope es tuPrope es tu
  48. 🔍 24% Deus tuorum militumDeus tuorum militum
  49. 🔍 24% Praefatio de Adventu IPraefatio de Adventu I
  50. 🔍 24% Praefatio solemnis de Omnibus Sanctis et PatronisPraefatio solemnis de Omnibus Sanctis et Patronis
  51. 🔍 24% Praefatio solemnis de S. BenedictoPraefatio solemnis de S. Benedicto
  52. 🔍 24% Justi epulentur (Intr.)Justi epulentur (Intr.)
  53. 🔍 24% Inclina cor meumInclina cor meum
  54. 🔍 24% Gloria XIIIGloria XIII
  55. 🔍 24% Praefatio solemnis de sancto Ioseph Sponso B. M. V.Praefatio solemnis de sancto Ioseph Sponso B. M. V.
  56. 🔍 24% Felix namque esFelix namque es
  57. 🔍 24% Jesu dulcisJesu dulcis
  58. 🔍 23% Jerusalem surge et exue teJerusalem surge et exue te
  59. 🔍 23% Praefatio solemnis de sancto Elia ProphetaPraefatio solemnis de sancto Elia Propheta
  60. 🔍 23% Praefatio solemnis de sancto Joanne BaptistaPraefatio solemnis de sancto Joanne Baptista
  61. 🔍 23% O Salutaris Hostia SacraO Salutaris Hostia Sacra
  62. 🔍 23% Praefatio solemnior de Ecclesiae DedicationePraefatio solemnior de Ecclesiae Dedicatione
  63. 🔍 23% Inclina cor meumInclina cor meum
  64. 🔍 23% Gloria I.Gloria I.
  65. 🔍 23% Gaude et laetare filia JerusalemGaude et laetare filia Jerusalem