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 VIIITantum ergo VIII
  2. 🔍 91% Tantum ergo VITantum ergo VI
  3. 🔍 89% Tantum ergo VTantum ergo V
  4. 🔍 88% Tantum ergo XITantum ergo XI
  5. 🔍 88% Tantum ergo (cantus V)Tantum ergo (cantus V)
  6. 🔍 85% Tantum ergo. IITantum ergo. II
  7. 🔍 85% Tantum ergo XIIITantum ergo XIII
  8. 🔍 84% Tantum ergo ITantum ergo I
  9. 🔍 83% Tantum ergoTantum ergo
  10. 🔍 80% Tantum ergo (cantus XII)Tantum ergo (cantus XII)
  11. 🔍 80% Tantum ergoTantum ergo
  12. 🔍 79% Tantum ergo (cantus XIII)Tantum ergo (cantus XIII)
  13. 🔍 78% Tantum ergo IXTantum ergo IX
  14. 🔍 77% Tantum ergo VIITantum ergo VII
  15. 🔍 77% Tantum ergo (cantus IX)Tantum ergo (cantus IX)
  16. 🔍 76% Tantum ergoTantum ergo
  17. 🔍 75% Tantum ergo XIITantum ergo XII
  18. 🔍 74% Tantum ergo XVTantum ergo XV
  19. 🔍 73% Tantum ergo IIITantum ergo III
  20. 🔍 72% Tantum ergoTantum ergo
  21. 🔍 72% Tantum ergoTantum ergo
  22. 🔍 71% Tantum ergo.Tantum ergo.
  23. 🔍 71% Tantum ergo II (Italian)Tantum ergo II (Italian)
  24. 🔍 70% Tantum ergo.Tantum ergo.
  25. 🔍 70% Tantum ergo IVTantum ergo IV
  26. 🔍 69% Tantum ergo (cantus VIII)Tantum ergo (cantus VIII)
  27. 🔍 67% Tantum ergo SacramentumTantum ergo Sacramentum
  28. 🔍 67% Tantum ergoTantum ergo
  29. 🔍 65% Tantum ergo 10 (Pothier)Tantum ergo 10 (Pothier)
  30. 🔍 65% Tantum ergo.Tantum ergo.
  31. 🔍 64% Tantum ergo 15 (Pothier)Tantum ergo 15 (Pothier)
  32. 🔍 64% Tantum ergo (cantus XI)Tantum ergo (cantus XI)
  33. 🔍 63% Tantum ergo 14 (Pothier)Tantum ergo 14 (Pothier)
  34. 🔍 63% Tantum ergo (modern chant)Tantum ergo (modern chant)
  35. 🔍 63% Tantum ergo (Spanish chant)Tantum ergo (Spanish chant)
  36. 🔍 59% Tantum ergo. MozarabTantum ergo. Mozarab
  37. 🔍 58% Tantum ergo XTantum ergo X
  38. 🔍 47% Tantum ergo XIVTantum ergo XIV
  39. 🔍 46% Pange lingua... CorporisPange lingua... Corporis
  40. 🔍 44% Pange lingua... CorporisPange lingua... Corporis
  41. 🔍 43% Pange lingua... CorporisPange lingua... Corporis
  42. 🔍 42% Pange lingua... CorporisPange lingua... Corporis
  43. 🔍 42% Pange lingua... CorporisPange lingua... Corporis
  44. 🔍 30% Splendor paternae gloriaeSplendor paternae gloriae
  45. 🔍 29% Splendor paternae gloriae (in Aestate)Splendor paternae gloriae (in Aestate)
  46. 🔍 29% Splendor paternaeSplendor paternae
  47. 🔍 28% O mysterium!O mysterium!
  48. 🔍 28% Lauda SionLauda Sion
  49. 🔍 28% Lux aeternaLux aeterna
  50. 🔍 28% Pange lingua... Corporis (alter tonus)Pange lingua... Corporis (alter tonus)
  51. 🔍 28% Ales diei nuntius (aestivalis)Ales diei nuntius (aestivalis)
  52. 🔍 27% Ales diei nuntiusAles diei nuntius
  53. 🔍 27% Aeterna caeli gloria (aestivalis)Aeterna caeli gloria (aestivalis)
  54. 🔍 27% Aeterna caeli gloria (in Aestate)Aeterna caeli gloria (in Aestate)
  55. 🔍 27% Firmamentum est DominusFirmamentum est Dominus
  56. 🔍 26% Ales diei nuntiusAles diei nuntius
  57. 🔍 26% Lauda SionLauda Sion
  58. 🔍 26% Sanctorum meritisSanctorum meritis
  59. 🔍 26% Aeterna caeli gloriaAeterna caeli gloria
  60. 🔍 25% Ex quo religioEx quo religio
  61. 🔍 25% Precemur omnes cernuiPrecemur omnes cernui
  62. 🔍 25% Praefatio ferialis de nuptiisPraefatio ferialis de nuptiis
  63. 🔍 25% Galli cantuGalli cantu
  64. 🔍 25% O quot undis lacrimarumO quot undis lacrimarum
  65. 🔍 25% Caelitum Joseph decusCaelitum Joseph decus