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 sol receditJam sol recedit
  2. 🔍 97% Jam sol receditJam sol recedit
  3. 🔍 90% Jam sol recedit igneusJam sol recedit igneus
  4. 🔍 90% Jam sol recedit igneus (Blessed Trinity)Jam sol recedit igneus (Blessed Trinity)
  5. 🔍 66% O lux beata TrinitasO lux beata Trinitas
  6. 🔍 64% O lux beata Trinitas (aestivalis)O lux beata Trinitas (aestivalis)
  7. 🔍 64% O lux beata Trinitas (aestivalis)O lux beata Trinitas (aestivalis)
  8. 🔍 59% O lux beata TrinitasO lux beata Trinitas
  9. 🔍 53% O lux beata TrinitasO lux beata Trinitas
  10. 🔍 52% Tu Trinitatis UnitasTu Trinitatis Unitas
  11. 🔍 50% Tu Trinitatis unitasTu Trinitatis unitas
  12. 🔍 49% Immensa et unaImmensa et una
  13. 🔍 48% Tu Trinitatis UnitasTu Trinitatis Unitas
  14. 🔍 48% Summae Deus (in festo SS. Trinitatis)Summae Deus (in festo SS. Trinitatis)
  15. 🔍 47% O lux beata TrinitasO lux beata Trinitas
  16. 🔍 47% O castitatis signiferO castitatis signifer
  17. 🔍 47% Summae Parens clementiaeSummae Parens clementiae
  18. 🔍 45% Martyr Dei qui unicumMartyr Dei qui unicum
  19. 🔍 43% Martyr Dei, qui unicumMartyr Dei, qui unicum
  20. 🔍 41% Audit tyrannus anxiusAudit tyrannus anxius
  21. 🔍 41% Quodcumque in orbeQuodcumque in orbe
  22. 🔍 41% Miris modis repenteMiris modis repente
  23. 🔍 41% Nullis te genitorNullis te genitor
  24. 🔍 39% Miris modis repente liberMiris modis repente liber
  25. 🔍 39% Invicte Martyr unicumInvicte Martyr unicum
  26. 🔍 38% Quodcumque in orbeQuodcumque in orbe
  27. 🔍 38% Lucis Creator optime (Alius tonus I (ad libitum))Lucis Creator optime (Alius tonus I (ad libitum))
  28. 🔍 38% Gloria VIIGloria VII
  29. 🔍 38% Venite exultemus IV GVenite exultemus IV G
  30. 🔍 38% Jam lucis orto sidere (In tempore Quadragesimae)Jam lucis orto sidere (In tempore Quadragesimae)
  31. 🔍 38% Exsultet orbis gaudiisExsultet orbis gaudiis
  32. 🔍 37% Iste Confessor (Conf. Bishop) 3Iste Confessor (Conf. Bishop) 3
  33. 🔍 37% Miserere mei... secundumMiserere mei... secundum
  34. 🔍 37% Exsultet orbis gaudiisExsultet orbis gaudiis
  35. 🔍 37% O lux beata Trinitas (hiemalis)O lux beata Trinitas (hiemalis)
  36. 🔍 37% Lucis Creator optime (another chant ad libitum)Lucis Creator optime (another chant ad libitum)
  37. 🔍 37% Summae Deus clementiae septemSummae Deus clementiae septem
  38. 🔍 36% Felix namque esFelix namque es
  39. 🔍 36% Christe pastorumChriste pastorum
  40. 🔍 36% Ex more docti mysticoEx more docti mystico
  41. 🔍 36% Felix namqueFelix namque
  42. 🔍 36% Quicumque certumQuicumque certum
  43. 🔍 36% Gloria XIIIGloria XIII
  44. 🔍 36% Jam lucis orto sidere (In tempore Passionis)Jam lucis orto sidere (In tempore Passionis)
  45. 🔍 36% Jam lucis orto sidere (Septem Dolorum)Jam lucis orto sidere (Septem Dolorum)
  46. 🔍 35% Regali solio fortisRegali solio fortis
  47. 🔍 35% Felix namque esFelix namque es
  48. 🔍 35% A solis ortusA solis ortus
  49. 🔍 35% Invicte MartyrInvicte Martyr
  50. 🔍 34% Iste Confessorum Domini (in Feriis tertiis)Iste Confessorum Domini (in Feriis tertiis)
  51. 🔍 34% Regali solioRegali solio
  52. 🔍 34% Jam lucis orto sidere (In Tempore Passionis)Jam lucis orto sidere (In Tempore Passionis)
  53. 🔍 34% Gloria IIGloria II
  54. 🔍 34% Veni Redemptor gentiumVeni Redemptor gentium
  55. 🔍 33% Quodcumque in orbeQuodcumque in orbe
  56. 🔍 33% Jam lucis orto sidere (In Quadragesima)Jam lucis orto sidere (In Quadragesima)
  57. 🔍 33% Aspice DomineAspice Domine
  58. 🔍 33% Beata AgathaBeata Agatha
  59. 🔍 33% O lux beata CaelitumO lux beata Caelitum
  60. 🔍 33% Regali solio fortisRegali solio fortis
  61. 🔍 33% O lux beata CaelitumO lux beata Caelitum
  62. 🔍 33% Benedicta semperBenedicta semper
  63. 🔍 32% Te Deum (sec. mor. Rom)Te Deum (sec. mor. Rom)
  64. 🔍 32% O lux beata CaelitumO lux beata Caelitum
  65. 🔍 32% Jesu dulcis memoria!Jesu dulcis memoria!