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% Ecce jam noctis tenuaturEcce jam noctis tenuatur
  2. 🔍 89% Ecce jam noctis tenuatur (Alter tonus)Ecce jam noctis tenuatur (Alter tonus)
  3. 🔍 57% Ecce jam noctisEcce jam noctis
  4. 🔍 43% Ecce iam noctisEcce iam noctis
  5. 🔍 42% Ecce jamEcce jam
  6. 🔍 39% Ecce jamEcce jam
  7. 🔍 33% Nocte surgentesNocte surgentes
  8. 🔍 33% Solis obliquum (S. Rita)Solis obliquum (S. Rita)
  9. 🔍 32% Christe Sanctorum (S. Gabr.)Christe Sanctorum (S. Gabr.)
  10. 🔍 31% Christe Sanctorum (S. Raph.)Christe Sanctorum (S. Raph.)
  11. 🔍 30% Jam sol receditJam sol recedit
  12. 🔍 30% Jam sol receditJam sol recedit
  13. 🔍 30% Christe sanctorumChriste sanctorum
  14. 🔍 29% Jam sol recedit igneusJam sol recedit igneus
  15. 🔍 29% Christe Sanctorum (S. Mich.)Christe Sanctorum (S. Mich.)
  16. 🔍 28% Jam sol recedit igneus (Blessed Trinity)Jam sol recedit igneus (Blessed Trinity)
  17. 🔍 28% Aurora jam spargitAurora jam spargit
  18. 🔍 28% O lux beata Trinitas (aestivalis)O lux beata Trinitas (aestivalis)
  19. 🔍 28% Gloria IIGloria II
  20. 🔍 28% Splendor paternae gloriae (in Hieme)Splendor paternae gloriae (in Hieme)
  21. 🔍 28% O lux beata Trinitas (aestivalis)O lux beata Trinitas (aestivalis)
  22. 🔍 28% O lux beata TrinitasO lux beata Trinitas
  23. 🔍 27% Jam lucis orto sidere (In tempore Quadragesimae)Jam lucis orto sidere (In tempore Quadragesimae)
  24. 🔍 27% Somno refectis artubusSomno refectis artubus
  25. 🔍 27% Nocte surgentesNocte surgentes
  26. 🔍 26% Miserere mei... secundumMiserere mei... secundum
  27. 🔍 26% Jam lucis orto sidereJam lucis orto sidere
  28. 🔍 26% Lux alma Jesu mentiumLux alma Jesu mentium
  29. 🔍 26% Jam lucis orto sidere (In Dom. et Minor. Festis)Jam lucis orto sidere (In Dom. et Minor. Festis)
  30. 🔍 26% Christe sanctorum decus Angelorum (Raphaelis)Christe sanctorum decus Angelorum (Raphaelis)
  31. 🔍 26% Aurora iamAurora iam
  32. 🔍 26% Jam lucis orto sidere (In Feriis et Fest. Simpl.)Jam lucis orto sidere (In Feriis et Fest. Simpl.)
  33. 🔍 26% Invicte Martyr unicumInvicte Martyr unicum
  34. 🔍 26% Credo IICredo II
  35. 🔍 26% Jam lucis orto sidere (Tempore Epiphaniae)Jam lucis orto sidere (Tempore Epiphaniae)
  36. 🔍 26% Jam lucis orto sidere (ord. Sund.)Jam lucis orto sidere (ord. Sund.)
  37. 🔍 26% Exsultet iam angelicaExsultet iam angelica
  38. 🔍 26% O lux beata TrinitasO lux beata Trinitas
  39. 🔍 26% Creator alme siderumCreator alme siderum
  40. 🔍 25% Gloria XIIIGloria XIII
  41. 🔍 25% Voce jucunditatisVoce jucunditatis
  42. 🔍 25% Jam lucis orto sidere (Septem Dolorum)Jam lucis orto sidere (Septem Dolorum)
  43. 🔍 25% Sanctitatis nova signaSanctitatis nova signa
  44. 🔍 25% Sanctitatis nova signaSanctitatis nova signa
  45. 🔍 25% Christe sanctorum decus Angelorum (Gabrielis)Christe sanctorum decus Angelorum (Gabrielis)
  46. 🔍 25% Omnis expertemOmnis expertem
  47. 🔍 25% Exsultet jam AngelicaExsultet jam Angelica
  48. 🔍 25% Jam lucis orto sidereJam lucis orto sidere
  49. 🔍 25% Aurora Jam Spargit PolumAurora Jam Spargit Polum
  50. 🔍 25% Splendor paternaeSplendor paternae
  51. 🔍 25% O sator rerumO sator rerum
  52. 🔍 25% Verbum salutis omniumVerbum salutis omnium
  53. 🔍 25% Aurora Jam Spargit Polum (hiemalis)Aurora Jam Spargit Polum (hiemalis)
  54. 🔍 25% Litaniae LauretanaeLitaniae Lauretanae
  55. 🔍 25% Luce divinaLuce divina
  56. 🔍 25% Jam lucis orto sidere (In Quadragesima)Jam lucis orto sidere (In Quadragesima)
  57. 🔍 25% Jam lucis orto sidereJam lucis orto sidere
  58. 🔍 25% Te lucis ante terminum (In Epiphania)Te lucis ante terminum (In Epiphania)
  59. 🔍 25% Creator alme siderumCreator alme siderum
  60. 🔍 25% Quodcumque in orbeQuodcumque in orbe
  61. 🔍 25% Verbum salutis omniumVerbum salutis omnium
  62. 🔍 25% Somno refectisSomno refectis
  63. 🔍 25% Sicut oculiSicut oculi
  64. 🔍 25% Dum lux exoriturDum lux exoritur
  65. 🔍 25% Mediae noctisMediae noctis