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% Immensa et unaImmensa et una
  2. 🔍 57% Summae Deus (in festo SS. Trinitatis)Summae Deus (in festo SS. Trinitatis)
  3. 🔍 57% O lux beata Trinitas (aestivalis)O lux beata Trinitas (aestivalis)
  4. 🔍 55% O castitatis signiferO castitatis signifer
  5. 🔍 55% O lux beata Trinitas (aestivalis)O lux beata Trinitas (aestivalis)
  6. 🔍 54% Tu Trinitatis UnitasTu Trinitatis Unitas
  7. 🔍 53% O lux beata TrinitasO lux beata Trinitas
  8. 🔍 51% Martyr Dei, qui unicumMartyr Dei, qui unicum
  9. 🔍 51% O lux beata TrinitasO lux beata Trinitas
  10. 🔍 50% Audit tyrannus anxiusAudit tyrannus anxius
  11. 🔍 49% Jam sol receditJam sol recedit
  12. 🔍 49% Tu Trinitatis UnitasTu Trinitatis Unitas
  13. 🔍 49% Jam sol receditJam sol recedit
  14. 🔍 48% Tu Trinitatis unitasTu Trinitatis unitas
  15. 🔍 48% Martyr Dei qui unicumMartyr Dei qui unicum
  16. 🔍 48% Summae Parens clementiaeSummae Parens clementiae
  17. 🔍 47% Jam sol recedit igneusJam sol recedit igneus
  18. 🔍 46% Venite exultemus IV GVenite exultemus IV G
  19. 🔍 45% Jam sol recedit igneus (Blessed Trinity)Jam sol recedit igneus (Blessed Trinity)
  20. 🔍 44% Miserere mei... secundumMiserere mei... secundum
  21. 🔍 44% Nullis te genitorNullis te genitor
  22. 🔍 43% Summae Deus clementiae septemSummae Deus clementiae septem
  23. 🔍 43% Regali solioRegali solio
  24. 🔍 43% Regali solio fortisRegali solio fortis
  25. 🔍 42% Custodes hominumCustodes hominum
  26. 🔍 41% A solis ortusA solis ortus
  27. 🔍 41% Regali solio fortisRegali solio fortis
  28. 🔍 40% Gloria VIIGloria VII
  29. 🔍 40% Veni Redemptor gentiumVeni Redemptor gentium
  30. 🔍 39% O lux beata TrinitasO lux beata Trinitas
  31. 🔍 39% Felix namque esFelix namque es
  32. 🔍 39% Quicumque certumQuicumque certum
  33. 🔍 39% Dum lux exoriturDum lux exoritur
  34. 🔍 38% Iste Confessor (Conf. Bishop) 3Iste Confessor (Conf. Bishop) 3
  35. 🔍 38% Custodes hominumCustodes hominum
  36. 🔍 37% Quodcumque in orbeQuodcumque in orbe
  37. 🔍 37% Legis sacrataeLegis sacratae
  38. 🔍 37% Hostis HerodesHostis Herodes
  39. 🔍 37% Venite exsultemus IV**Venite exsultemus IV**
  40. 🔍 37% Ex more docti mysticoEx more docti mystico
  41. 🔍 37% Invicte MartyrInvicte Martyr
  42. 🔍 37% Invicte Martyr unicumInvicte Martyr unicum
  43. 🔍 36% Gloria XIIIGloria XIII
  44. 🔍 36% Felix namqueFelix namque
  45. 🔍 36% Ecce iam noctisEcce iam noctis
  46. 🔍 36% Felix per omnesFelix per omnes
  47. 🔍 36% Inclina cor meumInclina cor meum
  48. 🔍 36% Christe pastorumChriste pastorum
  49. 🔍 36% Aspice DomineAspice Domine
  50. 🔍 36% Felix namque esFelix namque es
  51. 🔍 36% Quodcumque in orbeQuodcumque in orbe
  52. 🔍 35% Jesu dulcis memoria!Jesu dulcis memoria!
  53. 🔍 35% Commune vos apostoliCommune vos apostoli
  54. 🔍 35% Miris modis repenteMiris modis repente
  55. 🔍 35% Candor aeternaeCandor aeternae
  56. 🔍 35% Jam lucis orto sidere (Septem Dolorum)Jam lucis orto sidere (Septem Dolorum)
  57. 🔍 35% Jam lucis orto sidere (In tempore Quadragesimae)Jam lucis orto sidere (In tempore Quadragesimae)
  58. 🔍 35% Gloria IIGloria II
  59. 🔍 35% Petrus beatusPetrus beatus
  60. 🔍 34% Inclina cor meumInclina cor meum
  61. 🔍 34% Beata AgathaBeata Agatha
  62. 🔍 34% Inclina cor meumInclina cor meum
  63. 🔍 34% Iste Confessorum Domini (in Feriis tertiis)Iste Confessorum Domini (in Feriis tertiis)
  64. 🔍 34% ExsurgeExsurge
  65. 🔍 34% Captator olim pisciumCaptator olim piscium