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% Lucis Creator optimeLucis Creator optime
  2. 🔍 98% Lucis Creator optimeLucis Creator optime
  3. 🔍 68% Lucis Creator optimeLucis Creator optime
  4. 🔍 67% Lucis creatorLucis creator
  5. 🔍 67% Lucis Creator optime (in Aestate)Lucis Creator optime (in Aestate)
  6. 🔍 65% Lucis creatorLucis creator
  7. 🔍 61% Lucis Creator optime (in Hieme)Lucis Creator optime (in Hieme)
  8. 🔍 52% Lucis Creator optimeLucis Creator optime
  9. 🔍 48% Te lucis ante terminum (In Solemnitatibus)Te lucis ante terminum (In Solemnitatibus)
  10. 🔍 47% Te lucis ante terminum (In Major. Festis per Annum)Te lucis ante terminum (In Major. Festis per Annum)
  11. 🔍 46% Lucis Creator optime (another chant ad libitum)Lucis Creator optime (another chant ad libitum)
  12. 🔍 45% Lucis Creator optime (another chant)Lucis Creator optime (another chant)
  13. 🔍 45% Lucis Creator optime (Alius tonus I (ad libitum))Lucis Creator optime (Alius tonus I (ad libitum))
  14. 🔍 44% Lucis Creator optime (Alius tonus II)Lucis Creator optime (Alius tonus II)
  15. 🔍 44% Lucis Creator optimeLucis Creator optime
  16. 🔍 42% Rerum Deus (In Solemnitatibus)Rerum Deus (In Solemnitatibus)
  17. 🔍 42% Beata nobisBeata nobis
  18. 🔍 41% Rerum Deus tenax vigor (In Major. Festis)Rerum Deus tenax vigor (In Major. Festis)
  19. 🔍 40% Rector potens (In Festis majoribus)Rector potens (In Festis majoribus)
  20. 🔍 40% Rector potens verax Deus (In Major. Festis)Rector potens verax Deus (In Major. Festis)
  21. 🔍 39% Impleta gaudentImpleta gaudent
  22. 🔍 39% Nunc Sancte nobis Spiritus (In Major. Festis)Nunc Sancte nobis Spiritus (In Major. Festis)
  23. 🔍 38% Te lucis ante terminum (In Quadragesima)Te lucis ante terminum (In Quadragesima)
  24. 🔍 38% Te lucis ante terminum (Lent)Te lucis ante terminum (Lent)
  25. 🔍 38% Deus creator omniumDeus creator omnium
  26. 🔍 38% Jam lucis orto sidere (Solemn feasts)Jam lucis orto sidere (Solemn feasts)
  27. 🔍 38% Iesu quadragenariaeIesu quadragenariae
  28. 🔍 38% Jam lucis orto sidere (In Major. Festis)Jam lucis orto sidere (In Major. Festis)
  29. 🔍 38% Deus creator omniumDeus creator omnium
  30. 🔍 37% Te lucis ante terminum (In Adventu)Te lucis ante terminum (In Adventu)
  31. 🔍 37% Hymnum novaeHymnum novae
  32. 🔍 36% Mente jucundaMente jucunda
  33. 🔍 36% Lucis Creator optime (Dom. per Annum)Lucis Creator optime (Dom. per Annum)
  34. 🔍 35% Christe qui luxChriste qui lux
  35. 🔍 35% In martyris LaurentiiIn martyris Laurentii
  36. 🔍 35% Libera me Domine de morteLibera me Domine de morte
  37. 🔍 35% Te lucis ante terminum (In Adventu)Te lucis ante terminum (In Adventu)
  38. 🔍 35% Te DeumTe Deum
  39. 🔍 35% Te DeumTe Deum
  40. 🔍 35% O quam glorificaO quam glorifica
  41. 🔍 35% Te lucis ante terminum (In Tempore Paschali)Te lucis ante terminum (In Tempore Paschali)
  42. 🔍 34% Stephani victoria!Stephani victoria!
  43. 🔍 34% Sanctorum meritis inclyta gaudiaSanctorum meritis inclyta gaudia
  44. 🔍 34% Festum celebre martyrisFestum celebre martyris
  45. 🔍 34% Te DeumTe Deum
  46. 🔍 34% Gaudeamus... assumptioneGaudeamus... assumptione
  47. 🔍 33% O nimis felixO nimis felix
  48. 🔍 33% Te DeumTe Deum
  49. 🔍 33% Rector PotensRector Potens
  50. 🔍 33% Grande RaymundiGrande Raymundi
  51. 🔍 33% Post Petrum primumPost Petrum primum
  52. 🔍 32% Te Deum (tonus monasticus)Te Deum (tonus monasticus)
  53. 🔍 32% Ut queant laxisUt queant laxis
  54. 🔍 32% Christum rogemusChristum rogemus
  55. 🔍 32% O quam glorificaO quam glorifica
  56. 🔍 32% Exsultet caelum (I)Exsultet caelum (I)
  57. 🔍 32% Dum tuos omnes!Dum tuos omnes!
  58. 🔍 32% Jam Christus astraJam Christus astra
  59. 🔍 32% Gloria XIGloria XI
  60. 🔍 31% Gaude Mater PoloniaGaude Mater Polonia
  61. 🔍 31% Cum autem complacuitCum autem complacuit
  62. 🔍 31% Rerum, Deus, tenaxRerum, Deus, tenax
  63. 🔍 31% Vidi aquam IIIVidi aquam III
  64. 🔍 31% Rerum Deus tenax vigorRerum Deus tenax vigor
  65. 🔍 31% Rerum Deus tenax vigorRerum Deus tenax vigor