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% Tantum ergo XVTantum ergo XV
  2. 🔍 79% Tantum ergo VITantum ergo VI
  3. 🔍 75% Tantum ergo XITantum ergo XI
  4. 🔍 75% Tantum ergo VTantum ergo V
  5. 🔍 74% Tantum ergo VIIITantum ergo VIII
  6. 🔍 74% Tantum ergo. IITantum ergo. II
  7. 🔍 73% Tantum ergo XIIITantum ergo XIII
  8. 🔍 72% Tantum ergo ITantum ergo I
  9. 🔍 71% Tantum ergo (cantus XII)Tantum ergo (cantus XII)
  10. 🔍 70% Tantum ergo (cantus V)Tantum ergo (cantus V)
  11. 🔍 69% Tantum ergoTantum ergo
  12. 🔍 68% Tantum ergo (cantus IX)Tantum ergo (cantus IX)
  13. 🔍 67% Tantum ergoTantum ergo
  14. 🔍 65% Tantum ergo.Tantum ergo.
  15. 🔍 65% Tantum ergo (cantus XIII)Tantum ergo (cantus XIII)
  16. 🔍 65% Tantum ergoTantum ergo
  17. 🔍 64% Tantum ergo IXTantum ergo IX
  18. 🔍 64% Tantum ergo VIITantum ergo VII
  19. 🔍 62% Tantum ergo XIITantum ergo XII
  20. 🔍 62% Tantum ergo IIITantum ergo III
  21. 🔍 62% Tantum ergo.Tantum ergo.
  22. 🔍 61% Tantum ergoTantum ergo
  23. 🔍 61% Tantum ergo IVTantum ergo IV
  24. 🔍 60% Tantum ergoTantum ergo
  25. 🔍 59% Tantum ergo II (Italian)Tantum ergo II (Italian)
  26. 🔍 59% Tantum ergoTantum ergo
  27. 🔍 58% Tantum ergo (cantus XI)Tantum ergo (cantus XI)
  28. 🔍 58% Tantum ergo 10 (Pothier)Tantum ergo 10 (Pothier)
  29. 🔍 56% Tantum ergo (cantus VIII)Tantum ergo (cantus VIII)
  30. 🔍 56% Tantum ergo SacramentumTantum ergo Sacramentum
  31. 🔍 56% Tantum ergo (Spanish chant)Tantum ergo (Spanish chant)
  32. 🔍 55% Tantum ergo.Tantum ergo.
  33. 🔍 55% Tantum ergo 15 (Pothier)Tantum ergo 15 (Pothier)
  34. 🔍 54% Tantum ergo (modern chant)Tantum ergo (modern chant)
  35. 🔍 49% Tantum ergo 14 (Pothier)Tantum ergo 14 (Pothier)
  36. 🔍 48% Tantum ergo XIVTantum ergo XIV
  37. 🔍 47% Tantum ergo XTantum ergo X
  38. 🔍 46% Tantum ergo. MozarabTantum ergo. Mozarab
  39. 🔍 40% Pange lingua... CorporisPange lingua... Corporis
  40. 🔍 39% Pange lingua... CorporisPange lingua... Corporis
  41. 🔍 36% Pange lingua... CorporisPange lingua... Corporis
  42. 🔍 34% Pange lingua... CorporisPange lingua... Corporis
  43. 🔍 34% Pange lingua... CorporisPange lingua... Corporis
  44. 🔍 32% Non fraus magnanimumNon fraus magnanimum
  45. 🔍 28% Custodes hominumCustodes hominum
  46. 🔍 28% Grande RaymundiGrande Raymundi
  47. 🔍 27% Dum sacerdotumDum sacerdotum
  48. 🔍 27% Mente jucundaMente jucunda
  49. 🔍 27% AngularisAngularis
  50. 🔍 27% Sanctorum meritis inclyta gaudiaSanctorum meritis inclyta gaudia
  51. 🔍 27% Inclitos Christi famulosInclitos Christi famulos
  52. 🔍 26% Gloria XIGloria XI
  53. 🔍 26% Firmamentum est DominusFirmamentum est Dominus
  54. 🔍 26% Lauda SionLauda Sion
  55. 🔍 25% O nimis felixO nimis felix
  56. 🔍 25% Iste Confessor (Impr. Stigmatum)Iste Confessor (Impr. Stigmatum)
  57. 🔍 25% O quot undis lacrimarumO quot undis lacrimarum
  58. 🔍 25% Gloria IGloria I
  59. 🔍 25% Sic Patres vitamSic Patres vitam
  60. 🔍 25% Iste Confessor (Conf. not Bishop)Iste Confessor (Conf. not Bishop)
  61. 🔍 25% O gloriosi ApostoliO gloriosi Apostoli
  62. 🔍 25% Ave verumAve verum
  63. 🔍 25% Antra desertiAntra deserti
  64. 🔍 25% O Redemptor O Redemptor
  65. 🔍 25% Te Deum laudamus (tonus simplex)Te Deum laudamus (tonus simplex)