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% Fortis en praesulFortis en praesul
  2. 🔍 71% Fortis enFortis en
  3. 🔍 50% Iste Confessor (Pro Doctoribus)Iste Confessor (Pro Doctoribus)
  4. 🔍 47% Iste confessor (III)Iste confessor (III)
  5. 🔍 47% Iste Confessorum Domini (in Feriis secundis)Iste Confessorum Domini (in Feriis secundis)
  6. 🔍 47% Urbis aeterne celebresUrbis aeterne celebres
  7. 🔍 47% Quos Dei vivaxQuos Dei vivax
  8. 🔍 46% Petre sol terrisPetre sol terris
  9. 🔍 45% O Redemptoris pietasO Redemptoris pietas
  10. 🔍 45% Legifer prudensLegifer prudens
  11. 🔍 45% Virginis proles (III)Virginis proles (III)
  12. 🔍 44% Ad cenamAd cenam
  13. 🔍 41% Exsultet caelum (III)Exsultet caelum (III)
  14. 🔍 40% Deus tuorum II Cl.Deus tuorum II Cl.
  15. 🔍 40% Veni Creator SpiritusVeni Creator Spiritus
  16. 🔍 40% Iam ChristusIam Christus
  17. 🔍 38% Aeterna imago AltissimiAeterna imago Altissimi
  18. 🔍 38% Vexilla Christus inclytaVexilla Christus inclyta
  19. 🔍 38% Jam Christus astraJam Christus astra
  20. 🔍 38% Christe Redemptor omnium ex PatreChriste Redemptor omnium ex Patre
  21. 🔍 37% Ex more docti mysticoEx more docti mystico
  22. 🔍 37% Christe Redemptor omniumChriste Redemptor omnium
  23. 🔍 37% Veni Creator (1983/1934)Veni Creator (1983/1934)
  24. 🔍 37% Jam lucis orto sidere (In Pentecoste)Jam lucis orto sidere (In Pentecoste)
  25. 🔍 37% Puer Nobis NasciturPuer Nobis Nascitur
  26. 🔍 36% O mira caritasO mira caritas
  27. 🔍 36% Jam lucis orto sidere (In Pentecoste)Jam lucis orto sidere (In Pentecoste)
  28. 🔍 36% Haec hora (Pentecostes)Haec hora (Pentecostes)
  29. 🔍 36% Vexilla ChristusVexilla Christus
  30. 🔍 35% Te saeculorum PrincipemTe saeculorum Principem
  31. 🔍 35% Rerum deus tenax vigor (In Pentecoste)Rerum deus tenax vigor (In Pentecoste)
  32. 🔍 35% Veni Creator SpiritusVeni Creator Spiritus
  33. 🔍 35% Nunc tempus acceptabileNunc tempus acceptabile
  34. 🔍 35% Jam Christus astraJam Christus astra
  35. 🔍 35% Iste Confessor (Conf. Bishop) 2Iste Confessor (Conf. Bishop) 2
  36. 🔍 35% Rerum Deus (In Quadragesima)Rerum Deus (In Quadragesima)
  37. 🔍 35% Sanctorum meritisSanctorum meritis
  38. 🔍 34% Mente jucundaMente jucunda
  39. 🔍 34% Dei fideDei fide
  40. 🔍 34% Jam Christus astra ascenderatJam Christus astra ascenderat
  41. 🔍 34% Te lucis ante terminum (Tempus Adventus)Te lucis ante terminum (Tempus Adventus)
  42. 🔍 34% Jam lucis orto sidere (In Quadragesima)Jam lucis orto sidere (In Quadragesima)
  43. 🔍 34% Aeterne rerum conditorAeterne rerum conditor
  44. 🔍 34% Dicamus laudes DominoDicamus laudes Domino
  45. 🔍 34% O rex aeterne DomineO rex aeterne Domine
  46. 🔍 34% Te lucis ante terminum (In Pentecoste)Te lucis ante terminum (In Pentecoste)
  47. 🔍 34% Veni Creator SpiritusVeni Creator Spiritus
  48. 🔍 34% Ternis ter horisTernis ter horis
  49. 🔍 34% Iste Confessor (Conf. Bishop) (another chant)Iste Confessor (Conf. Bishop) (another chant)
  50. 🔍 34% Ex more docti MysticoEx more docti Mystico
  51. 🔍 34% Inclytos ChristiInclytos Christi
  52. 🔍 34% Ecce jam noctisEcce jam noctis
  53. 🔍 33% Lustris sex qui jam peractisLustris sex qui jam peractis
  54. 🔍 33% Te lucis ante terminum (In Festo D. N. J. C. Regis)Te lucis ante terminum (In Festo D. N. J. C. Regis)
  55. 🔍 33% Jam lucis orto sidere (In Festo Pentecostes)Jam lucis orto sidere (In Festo Pentecostes)
  56. 🔍 33% Iesu corona celsiorIesu corona celsior
  57. 🔍 33% Iesu corona celsiorIesu corona celsior
  58. 🔍 33% Christe qui splendor (Tempore Adventus post diem 16 decembris)Christe qui splendor (Tempore Adventus post diem 16 decembris)
  59. 🔍 33% En acetumEn acetum
  60. 🔍 33% Iesu corona celsiorIesu corona celsior
  61. 🔍 33% Barnabae clarumBarnabae clarum
  62. 🔍 33% Venite servi (Pentecostes)Venite servi (Pentecostes)
  63. 🔍 33% Christe pastorum (Pro Papa)Christe pastorum (Pro Papa)
  64. 🔍 33% Christus est vitaChristus est vita
  65. 🔍 33% Pange Lingua... ProeliumPange Lingua... Proelium