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 (simple)Requiem (simple)
  2. 🔍 55% Requiem (Ant.)Requiem (Ant.)
  3. 🔍 48% Lux aeternaLux aeterna
  4. 🔍 44% Lux aeternaLux aeterna
  5. 🔍 37% Lux aeternaLux aeterna
  6. 🔍 34% Lux aeternaLux aeterna
  7. 🔍 33% RequiemRequiem
  8. 🔍 33% Lux aeternaLux aeterna
  9. 🔍 32% Requiem (Intr.)Requiem (Intr.)
  10. 🔍 31% Requiem (Officium)Requiem (Officium)
  11. 🔍 29% Requiem (Intr.)Requiem (Intr.)
  12. 🔍 29% Requiem (Intr.)Requiem (Intr.)
  13. 🔍 27% Benedictus DominusBenedictus Dominus
  14. 🔍 27% Procedamus in paceProcedamus in pace
  15. 🔍 27% Requiem aeternamRequiem aeternam
  16. 🔍 27% Requiem aeternamRequiem aeternam
  17. 🔍 26% In nomine Christi. Amen.In nomine Christi. Amen.
  18. 🔍 26% Preces vespertinae Initia (french)Preces vespertinae Initia (french)
  19. 🔍 26% Preces vespertinae (french)Preces vespertinae (french)
  20. 🔍 26% Lux perpetuaLux perpetua
  21. 🔍 25% Lux perpetua (T.P.)Lux perpetua (T.P.)
  22. 🔍 25% Lux perpetua lucebitLux perpetua lucebit
  23. 🔍 25% Pie Jesu DominePie Jesu Domine
  24. 🔍 24% Verba meaVerba mea
  25. 🔍 24% RequiemRequiem
  26. 🔍 24% Lux aeternaLux aeterna
  27. 🔍 23% Litania 09 Propitius estoLitania 09 Propitius esto
  28. 🔍 23% Litania 03 Sancta MariaLitania 03 Sancta Maria
  29. 🔍 21% Litania 10 PeccatoresLitania 10 Peccatores
  30. 🔍 21% Litania 04 Sancta Dei GenitrixLitania 04 Sancta Dei Genitrix
  31. 🔍 21% Lux perpetuaLux perpetua
  32. 🔍 21% Litania 06 Sancte JoannesLitania 06 Sancte Joannes
  33. 🔍 21% Litania 08 Sancte PetreLitania 08 Sancte Petre
  34. 🔍 21% Lux perpetuaLux perpetua
  35. 🔍 20% Litania 05 Omnes sancti Litania 05 Omnes sancti
  36. 🔍 20% Facies unctionisFacies unctionis
  37. 🔍 20% Requiem aeternam (Alleluia)Requiem aeternam (Alleluia)
  38. 🔍 20% Dona eis, DomineDona eis, Domine
  39. 🔍 20% Requiem (Grad.)Requiem (Grad.)
  40. 🔍 20% Lux perpetua lucebitLux perpetua lucebit
  41. 🔍 20% Lux perpetua lucebitLux perpetua lucebit
  42. 🔍 20% Requiem (Resp.)Requiem (Resp.)
  43. 🔍 20% Por suasPor suas
  44. 🔍 19% Por suasPor suas
  45. 🔍 19% Por suasPor suas
  46. 🔍 19% Por suasPor suas
  47. 🔍 19% Por suasPor suas
  48. 🔍 19% Por suasPor suas
  49. 🔍 19% Por suasPor suas
  50. 🔍 19% Por suasPor suas
  51. 🔍 19% Agnus Dei (in Miss. def.)Agnus Dei (in Miss. def.)
  52. 🔍 19% Jesu Salvator mundiJesu Salvator mundi
  53. 🔍 19% Ego propter teEgo propter te
  54. 🔍 19% Laudate DominumLaudate Dominum
  55. 🔍 19% Prex eucharisticaPrex eucharistica
  56. 🔍 19% RequiemRequiem
  57. 🔍 19% RequiemRequiem
  58. 🔍 19% Litania 07 Omnes Sancti PatriarchaeLitania 07 Omnes Sancti Patriarchae
  59. 🔍 18% Toni Evangelii BToni Evangelii B
  60. 🔍 18% Toni Evangelii CToni Evangelii C
  61. 🔍 18% Lux perpetuaLux perpetua
  62. 🔍 18% Psalm 109 (Dixit Dominus) (Tone 1.f)Psalm 109 (Dixit Dominus) (Tone 1.f)
  63. 🔍 17% Dixit Dominus (Ps. 109, 1g)Dixit Dominus (Ps. 109, 1g)
  64. 🔍 17% Domine quando venerisDomine quando veneris
  65. 🔍 16% Toni Evangelii (A)Toni Evangelii (A)