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% Jacob autem genuit ... allel.Jacob autem genuit ... allel.
  2. 🔍 81% Jacob autem genuitJacob autem genuit
  3. 🔍 80% Jacob autem genuitJacob autem genuit
  4. 🔍 73% Jacob autem genuitJacob autem genuit
  5. 🔍 69% Jacob autem genuit (Ant.)Jacob autem genuit (Ant.)
  6. 🔍 59% Jacob autemJacob autem
  7. 🔍 56% Jacob autemJacob autem
  8. 🔍 55% Iacob autem genuit IosephIacob autem genuit Ioseph
  9. 🔍 53% Jacob autemJacob autem
  10. 🔍 51% Iacob autemIacob autem
  11. 🔍 50% Jacob autem (Com.)Jacob autem (Com.)
  12. 🔍 41% Iacob autemIacob autem
  13. 🔍 34% Iacob autemIacob autem
  14. 🔍 32% Ascendit autem JosephAscendit autem Joseph
  15. 🔍 32% Ipse JesusIpse Jesus
  16. 🔍 30% Unus autem ex illisUnus autem ex illis
  17. 🔍 29% Ave Maria ... allel.Ave Maria ... allel.
  18. 🔍 28% Missus est Angelus ... in civitatemMissus est Angelus ... in civitatem
  19. 🔍 28% Unus autem ex illisUnus autem ex illis
  20. 🔍 27% Iste est JoannesIste est Joannes
  21. 🔍 26% Quaerite primumQuaerite primum
  22. 🔍 25% Cum esset desponsata ... allel.Cum esset desponsata ... allel.
  23. 🔍 25% Subiit ergoSubiit ergo
  24. 🔍 25% Abiit JesusAbiit Jesus
  25. 🔍 25% Iste est JoannesIste est Joannes
  26. 🔍 25% Jacob autemJacob autem
  27. 🔍 25% Ait autem AngelusAit autem Angelus
  28. 🔍 25% Omnes autem vosOmnes autem vos
  29. 🔍 25% Justi autem... allel.Justi autem... allel.
  30. 🔍 25% Quaerite primumQuaerite primum
  31. 🔍 25% Missus est GabrielMissus est Gabriel
  32. 🔍 24% Iste Confessor patriarchaIste Confessor patriarcha
  33. 🔍 24% Ecce Maria genuitEcce Maria genuit
  34. 🔍 24% Angelus Domini apparuit (S. Jos.)Angelus Domini apparuit (S. Jos.)
  35. 🔍 24% Jesus erat incipiensJesus erat incipiens
  36. 🔍 24% Sanctificavit DominusSanctificavit Dominus
  37. 🔍 24% Angelus Domini apparuit Joseph (S. Jos)Angelus Domini apparuit Joseph (S. Jos)
  38. 🔍 24% Ibat Jesus in civitatemIbat Jesus in civitatem
  39. 🔍 24% Super omnia lignaSuper omnia ligna
  40. 🔍 24% Ascendit autemAscendit autem
  41. 🔍 24% Amavit eum DominusAmavit eum Dominus
  42. 🔍 24% Omnes autem vosOmnes autem vos
  43. 🔍 24% Dixit Jesus: Ut sciatisDixit Jesus: Ut sciatis
  44. 🔍 23% Omnes GentesOmnes Gentes
  45. 🔍 23% Alleluia Omnes GentesAlleluia Omnes Gentes
  46. 🔍 23% Alleluia LaudateAlleluia Laudate
  47. 🔍 23% Unus autem ex illisUnus autem ex illis
  48. 🔍 23% Jesu Christe... allel.Jesu Christe... allel.
  49. 🔍 23% In caelestibus regnis ... allel.In caelestibus regnis ... allel.
  50. 🔍 23% Angelus Domini apparuit (Resp.)Angelus Domini apparuit (Resp.)
  51. 🔍 23% Hodie egressa estHodie egressa est
  52. 🔍 23% Subiit ergo in montemSubiit ergo in montem
  53. 🔍 23% Ait autem AngelusAit autem Angelus
  54. 🔍 22% Gabriel Angelus ... EcceGabriel Angelus ... Ecce
  55. 🔍 22% Hodie Simon PetrusHodie Simon Petrus
  56. 🔍 22% Hodie Simon PetrusHodie Simon Petrus
  57. 🔍 22% Quod autemQuod autem
  58. 🔍 22% Ibat JesusIbat Jesus
  59. 🔍 22% Misericordia DominiMisericordia Domini
  60. 🔍 22% Reversis estReversis est
  61. 🔍 22% Ecce Maria genuitEcce Maria genuit
  62. 🔍 22% Ibat Jesus in civitatemIbat Jesus in civitatem
  63. 🔍 22% Vocabis nomen ejusVocabis nomen ejus
  64. 🔍 22% Missus est GabrielMissus est Gabriel
  65. 🔍 22% In ferventis oleiIn ferventis olei