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% Tantum ergoTantum ergo
  2. 🔍 87% Tantum ergoTantum ergo
  3. 🔍 84% Tantum ergo XITantum ergo XI
  4. 🔍 83% Tantum ergo (cantus V)Tantum ergo (cantus V)
  5. 🔍 83% Tantum ergo VIIITantum ergo VIII
  6. 🔍 82% Tantum ergo VITantum ergo VI
  7. 🔍 81% Tantum ergo. IITantum ergo. II
  8. 🔍 80% Tantum ergo ITantum ergo I
  9. 🔍 79% Tantum ergo (cantus XII)Tantum ergo (cantus XII)
  10. 🔍 79% Tantum ergo (cantus XIII)Tantum ergo (cantus XIII)
  11. 🔍 78% Tantum ergo VTantum ergo V
  12. 🔍 77% Tantum ergo (cantus IX)Tantum ergo (cantus IX)
  13. 🔍 76% Tantum ergoTantum ergo
  14. 🔍 75% Tantum ergo XIIITantum ergo XIII
  15. 🔍 75% Tantum ergo.Tantum ergo.
  16. 🔍 74% Tantum ergo.Tantum ergo.
  17. 🔍 74% Tantum ergo IXTantum ergo IX
  18. 🔍 73% Tantum ergo VIITantum ergo VII
  19. 🔍 72% Tantum ergoTantum ergo
  20. 🔍 72% Tantum ergoTantum ergo
  21. 🔍 72% Tantum ergoTantum ergo
  22. 🔍 71% Tantum ergo.Tantum ergo.
  23. 🔍 69% Tantum ergo XIITantum ergo XII
  24. 🔍 69% Tantum ergo IIITantum ergo III
  25. 🔍 69% Tantum ergo XVTantum ergo XV
  26. 🔍 69% Tantum ergo (cantus VIII)Tantum ergo (cantus VIII)
  27. 🔍 68% Tantum ergo SacramentumTantum ergo Sacramentum
  28. 🔍 67% Tantum ergo II (Italian)Tantum ergo II (Italian)
  29. 🔍 66% Tantum ergo 10 (Pothier)Tantum ergo 10 (Pothier)
  30. 🔍 66% Tantum ergo IVTantum ergo IV
  31. 🔍 65% Tantum ergo (cantus XI)Tantum ergo (cantus XI)
  32. 🔍 63% Tantum ergo (modern chant)Tantum ergo (modern chant)
  33. 🔍 63% Tantum ergo (Spanish chant)Tantum ergo (Spanish chant)
  34. 🔍 61% Tantum ergo 15 (Pothier)Tantum ergo 15 (Pothier)
  35. 🔍 58% Tantum ergo 14 (Pothier)Tantum ergo 14 (Pothier)
  36. 🔍 57% Tantum ergo. MozarabTantum ergo. Mozarab
  37. 🔍 55% Tantum ergo XTantum ergo X
  38. 🔍 45% Pange lingua... CorporisPange lingua... Corporis
  39. 🔍 45% Pange lingua... CorporisPange lingua... Corporis
  40. 🔍 44% Pange lingua... CorporisPange lingua... Corporis
  41. 🔍 44% Tantum ergo XIVTantum ergo XIV
  42. 🔍 43% Pange lingua... CorporisPange lingua... Corporis
  43. 🔍 43% Pange lingua... CorporisPange lingua... Corporis
  44. 🔍 28% Pange lingua... Corporis (alter tonus)Pange lingua... Corporis (alter tonus)
  45. 🔍 27% O mysterium!O mysterium!
  46. 🔍 27% Lauda SionLauda Sion
  47. 🔍 26% Firmamentum est DominusFirmamentum est Dominus
  48. 🔍 26% Lauda SionLauda Sion
  49. 🔍 26% Festum MariaeFestum Mariae
  50. 🔍 25% In principio creavitIn principio creavit
  51. 🔍 25% Benedicta semperBenedicta semper
  52. 🔍 24% Ave maris stella clarum jubarAve maris stella clarum jubar
  53. 🔍 24% Adoro te devoteAdoro te devote
  54. 🔍 23% Praefatio ferialis de sancto Joanne BaptistaPraefatio ferialis de sancto Joanne Baptista
  55. 🔍 23% Ave Regis AngelorumAve Regis Angelorum
  56. 🔍 23% Gaudeamus exsultantesGaudeamus exsultantes
  57. 🔍 23% Praefatio ferialis de nuptiisPraefatio ferialis de nuptiis
  58. 🔍 22% In diebus illis: Dixit Dominus ad MoysenIn diebus illis: Dixit Dominus ad Moysen
  59. 🔍 22% Et ideo novi testamentiEt ideo novi testamenti
  60. 🔍 22% Lauda SionLauda Sion
  61. 🔍 22% Angularis fundamentumAngularis fundamentum
  62. 🔍 22% Praefatio ferialis de S. BenedictoPraefatio ferialis de S. Benedicto
  63. 🔍 22% Virginis proles opifexque MatrisVirginis proles opifexque Matris
  64. 🔍 22% Virginis ProlesVirginis Proles
  65. 🔍 22% Antra desertiAntra deserti