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% Urbs fortitudinis nostrae SionUrbs fortitudinis nostrae Sion
  2. 🔍 65% Urbs fortitudinisUrbs fortitudinis
  3. 🔍 63% Urbs fortitudinisUrbs fortitudinis
  4. 🔍 52% Urbs fortitudinisUrbs fortitudinis
  5. 🔍 52% Urbs fortitudinisUrbs fortitudinis
  6. 🔍 52% Urbs fortitudinisUrbs fortitudinis
  7. 🔍 51% Urbs fortitudinis nostraeUrbs fortitudinis nostrae
  8. 🔍 51% Urbs fortitudinisUrbs fortitudinis
  9. 🔍 51% Urbs fortitudinisUrbs fortitudinis
  10. 🔍 25% Ave generosaAve generosa
  11. 🔍 23% De Sion... quiDe Sion... qui
  12. 🔍 22% Ecce in nubibusEcce in nubibus
  13. 🔍 22% Sion renovaberisSion renovaberis
  14. 🔍 21% Bernardus Doctor inclytusBernardus Doctor inclytus
  15. 🔍 21% Catharinae collaudemusCatharinae collaudemus
  16. 🔍 21% Pange lingua... proeliumPange lingua... proelium
  17. 🔍 20% Sion noli timereSion noli timere
  18. 🔍 20% Magne Pater AugustineMagne Pater Augustine
  19. 🔍 20% Salve lux mundi!Salve lux mundi!
  20. 🔍 20% In caelesti hierarchiaIn caelesti hierarchia
  21. 🔍 19% Ave MariaAve Maria
  22. 🔍 19% Jerusalem gaudeJerusalem gaude
  23. 🔍 19% Lustris sexLustris sex
  24. 🔍 19% Urbs Jerusalem beataUrbs Jerusalem beata
  25. 🔍 19% Orietur sicut solOrietur sicut sol
  26. 🔍 19% Sumite Psalterium jucundumSumite Psalterium jucundum
  27. 🔍 19% LaudantemLaudantem
  28. 🔍 19% Pernox cum ChristoPernox cum Christo
  29. 🔍 19% De Sion... DominusDe Sion... Dominus
  30. 🔍 19% In matutinisIn matutinis
  31. 🔍 18% Si diligitis meSi diligitis me
  32. 🔍 18% AnnuntiateAnnuntiate
  33. 🔍 18% Si offersSi offers
  34. 🔍 18% Gabriel ArchangeleGabriel Archangele
  35. 🔍 18% Alleluia Fer. VI T.P. IAlleluia Fer. VI T.P. I
  36. 🔍 18% Praesens dies expendaturPraesens dies expendatur
  37. 🔍 18% Missus... in civitatemMissus... in civitatem
  38. 🔍 18% O quam beata urbsO quam beata urbs
  39. 🔍 18% Alleluia Omnes GentesAlleluia Omnes Gentes
  40. 🔍 18% Alleluia tuus sum egoAlleluia tuus sum ego
  41. 🔍 17% Elegit... SionElegit... Sion
  42. 🔍 17% Alleluia Fer. V T.P. IAlleluia Fer. V T.P. I
  43. 🔍 17% Alleluia Fer. VI T.P. IIAlleluia Fer. VI T.P. II
  44. 🔍 17% Dabo in SionDabo in Sion
  45. 🔍 17% De Sion veniet quiDe Sion veniet qui
  46. 🔍 17% Caelestis urbs JerusalemCaelestis urbs Jerusalem
  47. 🔍 17% Alleluia Fer. II T.P. IIAlleluia Fer. II T.P. II
  48. 🔍 17% Caelestis urbs JerusalemCaelestis urbs Jerusalem
  49. 🔍 17% Urbs Jerusalem beataUrbs Jerusalem beata
  50. 🔍 17% Omnes GentesOmnes Gentes
  51. 🔍 17% Alleluia Fer. III T.P. IAlleluia Fer. III T.P. I
  52. 🔍 17% Alleluia Fer. II T.P. IAlleluia Fer. II T.P. I
  53. 🔍 17% Elevata estElevata est
  54. 🔍 17% Alleluia Fer. IV T.P. IAlleluia Fer. IV T.P. I
  55. 🔍 17% Fortis est ut morsFortis est ut mors
  56. 🔍 17% Alleluia Fer. V T.P. IIAlleluia Fer. V T.P. II
  57. 🔍 17% Alleluia. Dom. LaudAlleluia. Dom. Laud
  58. 🔍 17% Alleluia Fer. IV T.P. IIAlleluia Fer. IV T.P. II
  59. 🔍 17% Alleluia laudate DominumAlleluia laudate Dominum
  60. 🔍 17% Beata es MariaBeata es Maria
  61. 🔍 17% Canite tubaCanite tuba
  62. 🔍 17% Si offers munus tuumSi offers munus tuum
  63. 🔍 16% In manus tuas... allel.In manus tuas... allel.
  64. 🔍 16% Alleluia Fer. III T.P. IIAlleluia Fer. III T.P. II
  65. 🔍 16% Si manseritis in meSi manseritis in me