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% Jam Christus astraJam Christus astra
  2. 🔍 97% Jam Christus astraJam Christus astra
  3. 🔍 72% Vexilla ChristusVexilla Christus
  4. 🔍 70% Jam Christus astra ascenderatJam Christus astra ascenderat
  5. 🔍 66% Jam Christus astraJam Christus astra
  6. 🔍 63% Te lucis ante terminum (In Festo Christi Regis)Te lucis ante terminum (In Festo Christi Regis)
  7. 🔍 62% Te lucis ante terminum (Pentecost)Te lucis ante terminum (Pentecost)
  8. 🔍 60% Nunc Sancte nobis (In Festo Christi Regis)Nunc Sancte nobis (In Festo Christi Regis)
  9. 🔍 51% Veni Creator SpiritusVeni Creator Spiritus
  10. 🔍 49% Jam lucis orto sidere (In Pentecoste)Jam lucis orto sidere (In Pentecoste)
  11. 🔍 48% Vexilla Christus inclytaVexilla Christus inclyta
  12. 🔍 47% Jam lucis orto sidere (In Pentecoste)Jam lucis orto sidere (In Pentecoste)
  13. 🔍 47% Quem terra pontus sideraQuem terra pontus sidera
  14. 🔍 47% Iste Confessor (Conf. Bishop) 2Iste Confessor (Conf. Bishop) 2
  15. 🔍 46% Ad regias Agni dapesAd regias Agni dapes
  16. 🔍 46% Te lucis ante terminum (In Pentecoste)Te lucis ante terminum (In Pentecoste)
  17. 🔍 46% Iste Confessor (Conf. Bishop) (another chant)Iste Confessor (Conf. Bishop) (another chant)
  18. 🔍 45% Jam lucis orto sidere (In Festo Pentecostes)Jam lucis orto sidere (In Festo Pentecostes)
  19. 🔍 44% Rerum Deus tenax vigor (In Pentecoste)Rerum Deus tenax vigor (In Pentecoste)
  20. 🔍 44% Jesu dulcis amorJesu dulcis amor
  21. 🔍 43% Jam Christus astraJam Christus astra
  22. 🔍 43% Jam Christus astra ascenderatJam Christus astra ascenderat
  23. 🔍 43% Ave maris stella (another chant)Ave maris stella (another chant)
  24. 🔍 43% Aeterna imago AltissimiAeterna imago Altissimi
  25. 🔍 43% Te lucis ante terminum (In Festo D. N. J. C. Regis)Te lucis ante terminum (In Festo D. N. J. C. Regis)
  26. 🔍 42% Credo VCredo V
  27. 🔍 42% Iam ChristusIam Christus
  28. 🔍 42% Rerum deus tenax vigor (In Pentecoste)Rerum deus tenax vigor (In Pentecoste)
  29. 🔍 41% Rector potens verax Deus (In Pentecoste)Rector potens verax Deus (In Pentecoste)
  30. 🔍 41% Rerum Deus (In Festo Pentecostes)Rerum Deus (In Festo Pentecostes)
  31. 🔍 40% Christe sanctorumChriste sanctorum
  32. 🔍 40% Te lucis ante terminum (In Festo Pentecostes)Te lucis ante terminum (In Festo Pentecostes)
  33. 🔍 40% Nunc Sancte nobis Spiritus (In festo D. N. J. C. Regis)Nunc Sancte nobis Spiritus (In festo D. N. J. C. Regis)
  34. 🔍 39% Rector potens (In Pentecoste)Rector potens (In Pentecoste)
  35. 🔍 39% Ad cenamAd cenam
  36. 🔍 39% Attende DomineAttende Domine
  37. 🔍 39% Jam lucis orto sidere (In Festo S. Cordis Jesu)Jam lucis orto sidere (In Festo S. Cordis Jesu)
  38. 🔍 38% Rector potens (In Festo Pentecostes)Rector potens (In Festo Pentecostes)
  39. 🔍 38% Adesto sancta TrinitasAdesto sancta Trinitas
  40. 🔍 38% Exsultet orbis gaudiis (another chant)Exsultet orbis gaudiis (another chant)
  41. 🔍 37% Cor arca legem continensCor arca legem continens
  42. 🔍 37% Jam lucis orto sidere (In tempore Quadragesimae)Jam lucis orto sidere (In tempore Quadragesimae)
  43. 🔍 36% Pange lingua... CorporisPange lingua... Corporis
  44. 🔍 36% Te lucis ante terminum (Sacred Heart)Te lucis ante terminum (Sacred Heart)
  45. 🔍 36% En ut superbaEn ut superba
  46. 🔍 36% Exsultet caelum (III)Exsultet caelum (III)
  47. 🔍 36% Jam morte victorJam morte victor
  48. 🔍 36% Jam toto subitusJam toto subitus
  49. 🔍 35% Nunc Sancte nobis (In Festo S. Cordis Jesu)Nunc Sancte nobis (In Festo S. Cordis Jesu)
  50. 🔍 35% Rerum deus tenax vigor (In Festo S. Cordis Jesu)Rerum deus tenax vigor (In Festo S. Cordis Jesu)
  51. 🔍 35% Alma RedemptorisAlma Redemptoris
  52. 🔍 35% Alma RedemptorisAlma Redemptoris
  53. 🔍 35% Jam lucis orto sidere (Septem Dolorum)Jam lucis orto sidere (Septem Dolorum)
  54. 🔍 35% Decora lux aeternitatis (another chant)Decora lux aeternitatis (another chant)
  55. 🔍 34% Rector potens (In Festo S. Cordis Jesu)Rector potens (In Festo S. Cordis Jesu)
  56. 🔍 34% Beatam me dicent... quia fecitBeatam me dicent... quia fecit
  57. 🔍 34% Ad regias Agni dapesAd regias Agni dapes
  58. 🔍 34% Jam lucis orto sidere (In festis BMV)Jam lucis orto sidere (In festis BMV)
  59. 🔍 34% Te gestientem gaudiisTe gestientem gaudiis
  60. 🔍 34% Libera me Domine de morteLibera me Domine de morte
  61. 🔍 33% O prima Virgo proditaO prima Virgo prodita
  62. 🔍 33% Beata visceraBeata viscera
  63. 🔍 33% Quem terra pontus sideraQuem terra pontus sidera
  64. 🔍 33% Deus tuorum II Cl.Deus tuorum II Cl.
  65. 🔍 33% Caelestis aulae nuntiusCaelestis aulae nuntius