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 OriensO Oriens
  2. 🔍 59% O OriensO Oriens
  3. 🔍 53% O Oriens splendor lucisO Oriens splendor lucis
  4. 🔍 53% O ClavisO Clavis
  5. 🔍 52% O OriensO Oriens
  6. 🔍 52% O OriensO Oriens
  7. 🔍 50% O Oriens splendorO Oriens splendor
  8. 🔍 47% O OriensO Oriens
  9. 🔍 46% O OriensO Oriens
  10. 🔍 43% O Rex gentiumO Rex gentium
  11. 🔍 43% O EmmanuelO Emmanuel
  12. 🔍 42% O clavis DavidO clavis David
  13. 🔍 39% O RadixO Radix
  14. 🔍 39% O AdonaiO Adonai
  15. 🔍 34% Illumina Domine (II)Illumina Domine (II)
  16. 🔍 32% O SapientiaO Sapientia
  17. 🔍 31% O SapientiaO Sapientia
  18. 🔍 31% O superni sponsaO superni sponsa
  19. 🔍 30% O Virgo virginumO Virgo virginum
  20. 🔍 29% O clavis DavidO clavis David
  21. 🔍 27% O RosaO Rosa
  22. 🔍 26% O Clavis DavidO Clavis David
  23. 🔍 26% O quam gloriosus est beatusO quam gloriosus est beatus
  24. 🔍 26% O radix JesseO radix Jesse
  25. 🔍 26% O Rex gloriaeO Rex gloriae
  26. 🔍 25% Summum RegemSummum Regem
  27. 🔍 25% Illumina Domine sedentesIllumina Domine sedentes
  28. 🔍 25% Beati estisBeati estis
  29. 🔍 24% O lux beata CaelitumO lux beata Caelitum
  30. 🔍 24% Verbum supernum prodiens aVerbum supernum prodiens a
  31. 🔍 24% Sicut solSicut sol
  32. 🔍 24% Splendor paternae gloriae (in Aestate)Splendor paternae gloriae (in Aestate)
  33. 🔍 24% O Thoma DidymeO Thoma Didyme
  34. 🔍 23% Rerum Deus (In Adventu)Rerum Deus (In Adventu)
  35. 🔍 23% Sol ecce lentusSol ecce lentus
  36. 🔍 23% Exsultet jam AngelicaExsultet jam Angelica
  37. 🔍 23% Splendor paternaeSplendor paternae
  38. 🔍 23% Splendor paternae gloriaeSplendor paternae gloriae
  39. 🔍 23% O lux beata CaelitumO lux beata Caelitum
  40. 🔍 23% Rector potens (In Adventu)Rector potens (In Adventu)
  41. 🔍 23% Rector potens (In Adventu)Rector potens (In Adventu)
  42. 🔍 23% O lux beata CaelitumO lux beata Caelitum
  43. 🔍 23% Verbum supernum prodiens a Verbum supernum prodiens a
  44. 🔍 23% Genuit puerperaGenuit puerpera
  45. 🔍 22% Illumina Domine sedentesIllumina Domine sedentes
  46. 🔍 22% O Clavis DavidO Clavis David
  47. 🔍 22% O Clavis DavidO Clavis David
  48. 🔍 22% Et veneruntEt venerunt
  49. 🔍 22% Vidi aquamVidi aquam
  50. 🔍 22% Languentibus in Purgatorio (Alter tonus)Languentibus in Purgatorio (Alter tonus)
  51. 🔍 22% O lux beata CaelitumO lux beata Caelitum
  52. 🔍 22% Non vos relinquamNon vos relinquam
  53. 🔍 22% O lux beata CaelitumO lux beata Caelitum
  54. 🔍 22% Salvete Christi vulneraSalvete Christi vulnera
  55. 🔍 22% Aeterne sol qui lumineAeterne sol qui lumine
  56. 🔍 22% O clavis David et sceptrumO clavis David et sceptrum
  57. 🔍 22% Jam lucis orto sidere (Tempore Adventus)Jam lucis orto sidere (Tempore Adventus)
  58. 🔍 22% Exortum est in tenebrisExortum est in tenebris
  59. 🔍 22% Pauper in peculioPauper in peculio
  60. 🔍 22% O clavis DavidO clavis David
  61. 🔍 22% Christus resurgensChristus resurgens
  62. 🔍 21% Sancte N.Sancte N.
  63. 🔍 21% O gente felix hospitaO gente felix hospita
  64. 🔍 21% Deus a LibanoDeus a Libano
  65. 🔍 21% Sol et lunaSol et luna