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% Tonus II*Tonus II*
  2. 🔍 97% Tonus II*Tonus II*
  3. 🔍 90% Tonus VIITonus VII
  4. 🔍 87% Tonus CTonus C
  5. 🔍 84% Tonus IVTonus IV
  6. 🔍 83% Tonus VIIITonus VIII
  7. 🔍 81% Tonus IIITonus III
  8. 🔍 79% Tonus DTonus D
  9. 🔍 78% Tonus ITonus I
  10. 🔍 74% Tonus IIV*VTonus IIV*V
  11. 🔍 74% Tonus ETonus E
  12. 🔍 71% Tonus VITonus VI
  13. 🔍 71% Tonus IV*Tonus IV*
  14. 🔍 69% Tonus IITonus II
  15. 🔍 68% Tonus PeregrinusTonus Peregrinus
  16. 🔍 48% Gloria PatriGloria Patri
  17. 🔍 46% Gloria PatriGloria Patri
  18. 🔍 41% Magnificat, 8G 8G* 8cMagnificat, 8G 8G* 8c
  19. 🔍 40% Versus litanici in cantu (Feria VI)Versus litanici in cantu (Feria VI)
  20. 🔍 40% Psalmus alleluiaticus E *Psalmus alleluiaticus E *
  21. 🔍 40% Psalmus 24Psalmus 24
  22. 🔍 39% Versus litanici in cantu (Feria V / Sabbato sancto)Versus litanici in cantu (Feria V / Sabbato sancto)
  23. 🔍 39% Qui te exspectantQui te exspectant
  24. 🔍 39% Toni Communes Ad Alleluia in Fine AntiphonarumToni Communes Ad Alleluia in Fine Antiphonarum
  25. 🔍 38% Popule meusPopule meus
  26. 🔍 38% Ecce lignum CrucisEcce lignum Crucis
  27. 🔍 38% Pro orationibus - Tonus simplexPro orationibus - Tonus simplex
  28. 🔍 37% Pro orationibus - Tonus sollemnisPro orationibus - Tonus sollemnis
  29. 🔍 37% UniversiUniversi
  30. 🔍 37% Ad te DomineAd te Domine
  31. 🔍 37% Toni Communes Pneumata In Fine AntiphonarumToni Communes Pneumata In Fine Antiphonarum
  32. 🔍 37% Psalmus 24Psalmus 24
  33. 🔍 37% Ecce lignum CrucisEcce lignum Crucis
  34. 🔍 37% Dominus vobiscum (Toni Orationem: Toni antiqui ad libitum: Tonus simplex.)Dominus vobiscum (Toni Orationem: Toni antiqui ad libitum: Tonus simplex.)
  35. 🔍 36% Benignitatem fecit DominusBenignitatem fecit Dominus
  36. 🔍 34% Psalmus 84Psalmus 84
  37. 🔍 33% Gloria (Introits tone 1)Gloria (Introits tone 1)
  38. 🔍 33% AlleluiaAlleluia
  39. 🔍 33% Toni Communes Ad Alleluia In Fine ResponsoriumToni Communes Ad Alleluia In Fine Responsorium
  40. 🔍 32% AlleluiaAlleluia
  41. 🔍 32% Gloria (Introits tone 5)Gloria (Introits tone 5)
  42. 🔍 32% Hosanna in excelsisHosanna in excelsis
  43. 🔍 30% Christus vincitChristus vincit
  44. 🔍 30% The Reproaches (10)The Reproaches (10)
  45. 🔍 30% Gloria PatriGloria Patri
  46. 🔍 30% Gloria (Introits tone 7)Gloria (Introits tone 7)
  47. 🔍 29% Victimae paschali laudesVictimae paschali laudes
  48. 🔍 28% Suscipe me DomineSuscipe me Domine
  49. 🔍 28% Psalmus responsorius E IPsalmus responsorius E I
  50. 🔍 27% Magnificat - 4E (simple)Magnificat - 4E (simple)
  51. 🔍 27% Vox claraVox clara
  52. 🔍 26% Preces vespertinae (french)Preces vespertinae (french)
  53. 🔍 26% Sancta MariaSancta Maria
  54. 🔍 26% Preces vespertinae Initia (french)Preces vespertinae Initia (french)
  55. 🔍 26% Gloria (Introits tone 4)Gloria (Introits tone 4)
  56. 🔍 26% Benedictus Deus (Laudes Divinae)Benedictus Deus (Laudes Divinae)
  57. 🔍 26% Ecce lignum CrucisEcce lignum Crucis
  58. 🔍 25% Gloria (Introits tone 3)Gloria (Introits tone 3)
  59. 🔍 25% Ad Orationes IIAd Orationes II
  60. 🔍 24% Gloria (Introits tone 8)Gloria (Introits tone 8)
  61. 🔍 24% Deus in adjutorium (Tonus festivus)Deus in adjutorium (Tonus festivus)
  62. 🔍 24% Clementissime DomineClementissime Domine
  63. 🔍 23% Laudate Dominum omnes Gentes (Ps. 116)Laudate Dominum omnes Gentes (Ps. 116)
  64. 🔍 22% Domine labia mea (in festis)Domine labia mea (in festis)
  65. 🔍 22% Toni Evangelii (A)Toni Evangelii (A)