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% Ex Sion speciesEx Sion species
  2. 🔍 52% Ex Sion speciesEx Sion species
  3. 🔍 43% Ex SyonEx Syon
  4. 🔍 36% Ex Sion speciesEx Sion species
  5. 🔍 36% Ex SionEx Sion
  6. 🔍 31% Ex SionEx Sion
  7. 🔍 28% Improperium... et non inveniImproperium... et non inveni
  8. 🔍 28% Aeterne RexAeterne Rex
  9. 🔍 27% Tu ChristeTu Christe
  10. 🔍 27% Specie tuaSpecie tua
  11. 🔍 25% Verbum supernum prodiens necVerbum supernum prodiens nec
  12. 🔍 25% Congregate illiCongregate illi
  13. 🔍 24% CommunicantesCommunicantes
  14. 🔍 24% Ex Sion speciesEx Sion species
  15. 🔍 24% Adjuvabit eamAdjuvabit eam
  16. 🔍 24% CommunicantesCommunicantes
  17. 🔍 23% Misit DominusMisit Dominus
  18. 🔍 23% Cor arca legem continensCor arca legem continens
  19. 🔍 23% Misit DominusMisit Dominus
  20. 🔍 23% Viderunt omnesViderunt omnes
  21. 🔍 23% Exaltent eumExaltent eum
  22. 🔍 22% Te CatharinaTe Catharina
  23. 🔍 22% Germinaverunt campiGerminaverunt campi
  24. 🔍 22% Vidi aquamVidi aquam
  25. 🔍 22% In virtute tuaIn virtute tua
  26. 🔍 22% Exaltent eumExaltent eum
  27. 🔍 22% Adjuvabit eamAdjuvabit eam
  28. 🔍 22% Ad DominumAd Dominum
  29. 🔍 21% ImproperiumImproperium
  30. 🔍 21% Aurea luceAurea luce
  31. 🔍 21% Vidi aquamVidi aquam
  32. 🔍 21% Benedicite DominumBenedicite Dominum
  33. 🔍 21% Gloria VGloria V
  34. 🔍 21% QuemadmodumQuemadmodum
  35. 🔍 20% Viderunt omnesViderunt omnes
  36. 🔍 20% Benedicte DominumBenedicte Dominum
  37. 🔍 20% Jesu Redemptor omnium (confes.)Jesu Redemptor omnium (confes.)
  38. 🔍 20% Congregate illiCongregate illi
  39. 🔍 20% Sicut cervusSicut cervus
  40. 🔍 20% Tribulationes cordisTribulationes cordis
  41. 🔍 20% O lux beata CaelitumO lux beata Caelitum
  42. 🔍 20% O lux beata CaelitumO lux beata Caelitum
  43. 🔍 20% Auctor beate saeculiAuctor beate saeculi
  44. 🔍 20% O lux beata CaelitumO lux beata Caelitum
  45. 🔍 20% Audi benigne Conditor Audi benigne Conditor
  46. 🔍 20% O lux beata CaelitumO lux beata Caelitum
  47. 🔍 20% Benedic... et renovabiturBenedic... et renovabitur
  48. 🔍 20% Isti sunt duae olivaeIsti sunt duae olivae
  49. 🔍 20% Gloria IIIGloria III
  50. 🔍 20% Omnes de SabaOmnes de Saba
  51. 🔍 19% Attende coelumAttende coelum
  52. 🔍 19% Dominus JesusDominus Jesus
  53. 🔍 19% Audi benigne conditorAudi benigne conditor
  54. 🔍 19% Audi benigne ConditorAudi benigne Conditor
  55. 🔍 19% Jesu Redemptor (IIa)Jesu Redemptor (IIa)
  56. 🔍 19% O lux beata CaelitumO lux beata Caelitum
  57. 🔍 19% Vidi aquam IIIVidi aquam III
  58. 🔍 19% Triumphat mundi principemTriumphat mundi principem
  59. 🔍 19% Invocabit meInvocabit me
  60. 🔍 19% Doctor egregie (I)Doctor egregie (I)
  61. 🔍 19% Invocabit meInvocabit me
  62. 🔍 19% In virtute tuaIn virtute tua
  63. 🔍 19% Te Deum PatremTe Deum Patrem
  64. 🔍 19% Summi sacerdos NuminisSummi sacerdos Numinis
  65. 🔍 19% Iste est JoannesIste est Joannes