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% OportebatOportebat
  2. 🔍 26% Laudate... omnes gentesLaudate... omnes gentes
  3. 🔍 24% Ave Maris Stella (Off. BMV in Sab. Alt.)Ave Maris Stella (Off. BMV in Sab. Alt.)
  4. 🔍 24% Pie PaterPie Pater
  5. 🔍 24% Deus docuistiDeus docuisti
  6. 🔍 23% VidimusVidimus
  7. 🔍 23% Gloriose PaterGloriose Pater
  8. 🔍 23% Nunc ergoNunc ergo
  9. 🔍 23% Felix ex fructuFelix ex fructu
  10. 🔍 22% Magnificat (Visit. B. M. V.)Magnificat (Visit. B. M. V.)
  11. 🔍 21% Laudate... omnes gentesLaudate... omnes gentes
  12. 🔍 20% Fundamenta ejusFundamenta ejus
  13. 🔍 20% Jubilate DominoJubilate Domino
  14. 🔍 20% Jubilate DominoJubilate Domino
  15. 🔍 20% Factus es spes meaFactus es spes mea
  16. 🔍 20% In medioIn medio
  17. 🔍 20% Honor virtusHonor virtus
  18. 🔍 20% De profundisDe profundis
  19. 🔍 20% Gloria (Introits tone 2)Gloria (Introits tone 2)
  20. 🔍 20% Laudate... omnes gentesLaudate... omnes gentes
  21. 🔍 20% Exsurge Domine DeusExsurge Domine Deus
  22. 🔍 20% Nos autemNos autem
  23. 🔍 20% ExsultaboExsultabo
  24. 🔍 20% Ego sumEgo sum
  25. 🔍 20% Beatus vir qui timetBeatus vir qui timet
  26. 🔍 19% Benedictus sitBenedictus sit
  27. 🔍 19% In medioIn medio
  28. 🔍 19% ConfitebunturConfitebuntur
  29. 🔍 19% ConfiteminiConfitemini
  30. 🔍 19% Sacerdotes DominiSacerdotes Domini
  31. 🔍 19% Tu es vasTu es vas
  32. 🔍 19% A solis ortusA solis ortus
  33. 🔍 19% Nos autemNos autem
  34. 🔍 19% Alleluia, SpiritusAlleluia, Spiritus
  35. 🔍 19% Exsurge Domine DeusExsurge Domine Deus
  36. 🔍 19% Quicumque Christum quaeritisQuicumque Christum quaeritis
  37. 🔍 19% ModicumModicum
  38. 🔍 19% Absolve DomineAbsolve Domine
  39. 🔍 18% A solis ortu... HieronymeA solis ortu... Hieronyme
  40. 🔍 18% Pie presul et patrone HenricePie presul et patrone Henrice
  41. 🔍 18% Vocem jucunditatisVocem jucunditatis
  42. 🔍 18% Exsurge Domine DeusExsurge Domine Deus
  43. 🔍 18% Beatus vir qui timet...delectatur (Tract.)Beatus vir qui timet...delectatur (Tract.)
  44. 🔍 18% Filiae regumFiliae regum
  45. 🔍 18% Domine secundum actumDomine secundum actum
  46. 🔍 18% Gyrum caeliGyrum caeli
  47. 🔍 18% Jesu ChristeJesu Christe
  48. 🔍 18% Spiritus SanctusSpiritus Sanctus
  49. 🔍 18% A solis ortus cardineA solis ortus cardine
  50. 🔍 18% Exspectans exspectaviExspectans exspectavi
  51. 🔍 18% Christus resurgensChristus resurgens
  52. 🔍 18% Tu es vas electionisTu es vas electionis
  53. 🔍 18% O solaO sola
  54. 🔍 18% Magi videntes parvulumMagi videntes parvulum
  55. 🔍 18% Spiritus DominiSpiritus Domini
  56. 🔍 18% Gloria (Introits tone 6)Gloria (Introits tone 6)
  57. 🔍 18% Nunc ergoNunc ergo
  58. 🔍 17% Domine Jesu ChristeDomine Jesu Christe
  59. 🔍 17% Dominus regnavit decoremDominus regnavit decorem
  60. 🔍 17% Sanctus IIISanctus III
  61. 🔍 17% Dominus regnavit decoremDominus regnavit decorem
  62. 🔍 17% Cantate DominoCantate Domino
  63. 🔍 17% Confirma hocConfirma hoc
  64. 🔍 17% Tolle puerumTolle puerum
  65. 🔍 17% Sciant gentesSciant gentes