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: 2025-12-20. 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% O Caelestis norma vitaeO Caelestis norma vitae
  2. 🔍 100% O Caelestis norma vitaeO Caelestis norma vitae
  3. 🔍 100% O Caelestis norma vitaeO Caelestis norma vitae
  4. 🔍 63% O caelestis norma vitaeO caelestis norma vitae
  5. 🔍 25% Fulget in caelisFulget in caelis
  6. 🔍 24% Laude te civesLaude te cives
  7. 🔍 24% Martyr Dei, qui unicumMartyr Dei, qui unicum
  8. 🔍 23% Immensa et unaImmensa et una
  9. 🔍 23% Te saeculorum PrincipemTe saeculorum Principem
  10. 🔍 23% O castitatis signiferO castitatis signifer
  11. 🔍 23% Martyr Dei qui unicumMartyr Dei qui unicum
  12. 🔍 23% Beata nobis gaudiaBeata nobis gaudia
  13. 🔍 23% Beata nobis gaudiaBeata nobis gaudia
  14. 🔍 23% Gloria VIIGloria VII
  15. 🔍 23% Rector ætérniRector ætérni
  16. 🔍 22% Te nostra laetisTe nostra laetis
  17. 🔍 22% Tu es pastor ovium (Antiphona)Tu es pastor ovium (Antiphona)
  18. 🔍 22% O lux beata Trinitas (aestivalis)O lux beata Trinitas (aestivalis)
  19. 🔍 22% Nullis te genitorNullis te genitor
  20. 🔍 22% Exsultet caelum laudibus (modus 4)Exsultet caelum laudibus (modus 4)
  21. 🔍 22% Gloriosus Dei amicusGloriosus Dei amicus
  22. 🔍 22% Commune vos apostoliCommune vos apostoli
  23. 🔍 22% O lux beata Trinitas (aestivalis)O lux beata Trinitas (aestivalis)
  24. 🔍 22% Haec femina laudabilisHaec femina laudabilis
  25. 🔍 22% A solis ortusA solis ortus
  26. 🔍 21% O lux beata TrinitasO lux beata Trinitas
  27. 🔍 21% Intuens in caelumIntuens in caelum
  28. 🔍 21% Relucens inter principesRelucens inter principes
  29. 🔍 21% Exsultet jam AngelicaExsultet jam Angelica
  30. 🔍 21% Invicte MartyrInvicte Martyr
  31. 🔍 21% Fortem virili pectoreFortem virili pectore
  32. 🔍 21% Fortem virili pectore (Saint Helena)Fortem virili pectore (Saint Helena)
  33. 🔍 21% Hae feminae laudabilesHae feminae laudabiles
  34. 🔍 21% Qui luce splendesQui luce splendes
  35. 🔍 21% Iter facienteIter faciente
  36. 🔍 21% Regali solioRegali solio
  37. 🔍 20% Dum lux exoriturDum lux exoritur
  38. 🔍 20% Summae Deus (in festo SS. Trinitatis)Summae Deus (in festo SS. Trinitatis)
  39. 🔍 20% Nunc decetNunc decet
  40. 🔍 20% Venite exsultemus VIVenite exsultemus VI
  41. 🔍 20% Beata AgathaBeata Agatha
  42. 🔍 20% Iam bone pastorIam bone pastor
  43. 🔍 20% Audit tyrannus anxiusAudit tyrannus anxius
  44. 🔍 20% Venite exultemus IV GVenite exultemus IV G
  45. 🔍 20% Fortem virili pectore (per annum)Fortem virili pectore (per annum)
  46. 🔍 20% Gloria XIIIGloria XIII
  47. 🔍 20% Aspice DomineAspice Domine
  48. 🔍 20% Beata nobisBeata nobis
  49. 🔍 20% Beata nobis gaudiaBeata nobis gaudia
  50. 🔍 20% Gemma caelestisGemma caelestis
  51. 🔍 20% Beata nobis gaudiaBeata nobis gaudia
  52. 🔍 20% Regali solio fortisRegali solio fortis
  53. 🔍 20% Invicte Martyr unicumInvicte Martyr unicum
  54. 🔍 20% Apostolorum passio diemApostolorum passio diem
  55. 🔍 19% Cohors beata SeraphimCohors beata Seraphim
  56. 🔍 19% Aspice Domine de sedeAspice Domine de sede
  57. 🔍 19% In caelesti hierarchiaIn caelesti hierarchia
  58. 🔍 19% Decus morumDecus morum
  59. 🔍 19% Jam sol receditJam sol recedit
  60. 🔍 19% Jam sol receditJam sol recedit
  61. 🔍 19% Hostis HerodesHostis Herodes
  62. 🔍 19% Praeclara qua tu gloriaPraeclara qua tu gloria
  63. 🔍 19% O lux beata TrinitasO lux beata Trinitas
  64. 🔍 19% Christe qui splendor (in festis)Christe qui splendor (in festis)
  65. 🔍 19% Te saeculorum PrincipemTe saeculorum Principem