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% Hodie scietisHodie scietis
  2. 🔍 56% Tollite portasTollite portas
  3. 🔍 54% Tecum principiumTecum principium
  4. 🔍 52% In omnem terramIn omnem terram
  5. 🔍 52% Justus ut palmaJustus ut palma
  6. 🔍 51% Domine refugiumDomine refugium
  7. 🔍 50% Angelis suisAngelis suis
  8. 🔍 49% Angelis suisAngelis suis
  9. 🔍 47% Nimis honorati suntNimis honorati sunt
  10. 🔍 47% Qui sedesQui sedes
  11. 🔍 46% Hodie scietisHodie scietis
  12. 🔍 46% RequiemRequiem
  13. 🔍 46% Exsultabit cor meumExsultabit cor meum
  14. 🔍 45% Hodie scietisHodie scietis
  15. 🔍 43% Nihil inquinatum (Grad)Nihil inquinatum (Grad)
  16. 🔍 42% DispersitDispersit
  17. 🔍 42% Haec dies... LapidemHaec dies... Lapidem
  18. 🔍 42% DeriventurDeriventur
  19. 🔍 40% Exalent eumExalent eum
  20. 🔍 39% Qui ambulatQui ambulat
  21. 🔍 39% Haec dies... BenedictusHaec dies... Benedictus
  22. 🔍 38% Haec dies... Dicant nuncHaec dies... Dicant nunc
  23. 🔍 38% Nimis honorati sunt (Grad.)Nimis honorati sunt (Grad.)
  24. 🔍 38% ExaltentExaltent
  25. 🔍 37% Haec dies... DexteraHaec dies... Dextera
  26. 🔍 37% Hodie scietisHodie scietis
  27. 🔍 37% A summo caeloA summo caelo
  28. 🔍 37% Domine Deus virtutumDomine Deus virtutum
  29. 🔍 36% Hodie scietisHodie scietis
  30. 🔍 36% In omnem terramIn omnem terram
  31. 🔍 36% Ne avertasNe avertas
  32. 🔍 36% Haec dies... Dicat nuncHaec dies... Dicat nunc
  33. 🔍 36% In sole posuitIn sole posuit
  34. 🔍 36% Tecum principiumTecum principium
  35. 🔍 36% Haec dies... ConfiteminiHaec dies... Confitemini
  36. 🔍 36% Tollite portasTollite portas
  37. 🔍 36% Misit DominusMisit Dominus
  38. 🔍 36% Uxor tuaUxor tua
  39. 🔍 35% Excita DomineExcita Domine
  40. 🔍 35% Adjutor et protectorAdjutor et protector
  41. 🔍 35% Populus SyonPopulus Syon
  42. 🔍 35% Haec dies... Dicant nuncHaec dies... Dicant nunc
  43. 🔍 35% Excita DomineExcita Domine
  44. 🔍 34% Tecum principiumTecum principium
  45. 🔍 34% Requiem (Resp.)Requiem (Resp.)
  46. 🔍 33% Qui habitatQui habitat
  47. 🔍 33% Inveni DavidInveni David
  48. 🔍 33% Ego dixiEgo dixi
  49. 🔍 33% DispersitDispersit
  50. 🔍 33% Dies sanctificatusDies sanctificatus
  51. 🔍 33% Sancti tui ... benedicentSancti tui ... benedicent
  52. 🔍 33% Haec dies... Dicat nuncHaec dies... Dicat nunc
  53. 🔍 33% Domine refugiumDomine refugium
  54. 🔍 33% Ab occultis meisAb occultis meis
  55. 🔍 33% Tollite portasTollite portas
  56. 🔍 33% EruditusEruditus
  57. 🔍 33% Tollite portasTollite portas
  58. 🔍 32% Nimis honorati suntNimis honorati sunt
  59. 🔍 32% In omnem terramIn omnem terram
  60. 🔍 32% Ne avertasNe avertas
  61. 🔍 32% Anima nostraAnima nostra
  62. 🔍 32% Anima nostraAnima nostra
  63. 🔍 32% Exaltent eumExaltent eum
  64. 🔍 32% Ave MariaAve Maria
  65. 🔍 31% Vidimus stellamVidimus stellam