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 (cantus IX)Tantum ergo (cantus IX)
  2. 🔍 84% Tantum ergo (cantus V)Tantum ergo (cantus V)
  3. 🔍 82% Tantum ergo (cantus XII)Tantum ergo (cantus XII)
  4. 🔍 80% Tantum ergo (cantus XIII)Tantum ergo (cantus XIII)
  5. 🔍 77% Tantum ergo VITantum ergo VI
  6. 🔍 77% Tantum ergoTantum ergo
  7. 🔍 77% Tantum ergo XITantum ergo XI
  8. 🔍 77% Tantum ergo VIIITantum ergo VIII
  9. 🔍 76% Tantum ergo. IITantum ergo. II
  10. 🔍 76% Tantum ergo VTantum ergo V
  11. 🔍 74% Tantum ergoTantum ergo
  12. 🔍 74% Tantum ergo XIIITantum ergo XIII
  13. 🔍 73% Tantum ergo ITantum ergo I
  14. 🔍 71% Tantum ergo.Tantum ergo.
  15. 🔍 70% Tantum ergoTantum ergo
  16. 🔍 70% Tantum ergo IXTantum ergo IX
  17. 🔍 69% Tantum ergo.Tantum ergo.
  18. 🔍 69% Tantum ergoTantum ergo
  19. 🔍 69% Tantum ergo (cantus XI)Tantum ergo (cantus XI)
  20. 🔍 69% Tantum ergo (cantus VIII)Tantum ergo (cantus VIII)
  21. 🔍 68% Tantum ergo XVTantum ergo XV
  22. 🔍 67% Tantum ergoTantum ergo
  23. 🔍 67% Tantum ergo VIITantum ergo VII
  24. 🔍 66% Tantum ergoTantum ergo
  25. 🔍 65% Tantum ergo XIITantum ergo XII
  26. 🔍 64% Tantum ergo SacramentumTantum ergo Sacramentum
  27. 🔍 63% Tantum ergo IIITantum ergo III
  28. 🔍 63% Tantum ergo.Tantum ergo.
  29. 🔍 63% Tantum ergo 10 (Pothier)Tantum ergo 10 (Pothier)
  30. 🔍 61% Tantum ergo IVTantum ergo IV
  31. 🔍 61% Tantum ergo II (Italian)Tantum ergo II (Italian)
  32. 🔍 61% Tantum ergo 15 (Pothier)Tantum ergo 15 (Pothier)
  33. 🔍 59% Tantum ergo (Spanish chant)Tantum ergo (Spanish chant)
  34. 🔍 58% Tantum ergo (modern chant)Tantum ergo (modern chant)
  35. 🔍 57% Tantum ergo 14 (Pothier)Tantum ergo 14 (Pothier)
  36. 🔍 54% Tantum ergo. MozarabTantum ergo. Mozarab
  37. 🔍 51% Tantum ergo XTantum ergo X
  38. 🔍 46% Tantum ergo XIVTantum ergo XIV
  39. 🔍 42% Pange lingua... CorporisPange lingua... Corporis
  40. 🔍 41% Pange lingua... CorporisPange lingua... Corporis
  41. 🔍 40% Pange lingua... CorporisPange lingua... Corporis
  42. 🔍 39% Pange lingua... CorporisPange lingua... Corporis
  43. 🔍 39% Pange lingua... CorporisPange lingua... Corporis
  44. 🔍 31% Antra desertiAntra deserti
  45. 🔍 29% Firmamentum est DominusFirmamentum est Dominus
  46. 🔍 28% Maria Mater gratiae (cantus III)Maria Mater gratiae (cantus III)
  47. 🔍 28% Ut queant laxisUt queant laxis
  48. 🔍 28% Praefatio solemnis de nuptiisPraefatio solemnis de nuptiis
  49. 🔍 27% Praefatio solemnis de S. BenedictoPraefatio solemnis de S. Benedicto
  50. 🔍 27% O mysterium!O mysterium!
  51. 🔍 27% Praefatio solemnis de sancto Elia ProphetaPraefatio solemnis de sancto Elia Propheta
  52. 🔍 27% Praefatio solemnis de sancto Ioseph Sponso B. M. V.Praefatio solemnis de sancto Ioseph Sponso B. M. V.
  53. 🔍 26% Praefatio solemnis de sancto Joanne BaptistaPraefatio solemnis de sancto Joanne Baptista
  54. 🔍 26% Lauda SionLauda Sion
  55. 🔍 26% Praefatio solemnis de MartyribusPraefatio solemnis de Martyribus
  56. 🔍 26% Gloria LausGloria Laus
  57. 🔍 26% Lauda SionLauda Sion
  58. 🔍 26% Praefatio solemnis de AngelisPraefatio solemnis de Angelis
  59. 🔍 26% Ave Virgo nobilisAve Virgo nobilis
  60. 🔍 25% Antra deserti tenerisAntra deserti teneris
  61. 🔍 25% Exsultet jam AngelicaExsultet jam Angelica
  62. 🔍 25% Praefatio de S. WillibrordoPraefatio de S. Willibrordo
  63. 🔍 25% Praefatio de nuptiisPraefatio de nuptiis
  64. 🔍 25% O Trinitas laudabilisO Trinitas laudabilis
  65. 🔍 25% Haec tuae virgoHaec tuae virgo