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% Nox et tenebrae (in Hieme)Nox et tenebrae (in Hieme)
  2. 🔍 81% Nox et tenebrae (in Aestate)Nox et tenebrae (in Aestate)
  3. 🔍 66% Nox et tenebraeNox et tenebrae
  4. 🔍 63% Nox et tenebraeNox et tenebrae
  5. 🔍 40% Aeterna caeli gloria (in Hieme)Aeterna caeli gloria (in Hieme)
  6. 🔍 38% Exsultet iam angelicaExsultet iam angelica
  7. 🔍 37% Ales diei nuntiusAles diei nuntius
  8. 🔍 36% Lux ecce surgit (in Hieme)Lux ecce surgit (in Hieme)
  9. 🔍 36% Splendor paternae gloriae (in Hieme)Splendor paternae gloriae (in Hieme)
  10. 🔍 35% Te Matrem laudamusTe Matrem laudamus
  11. 🔍 34% Hymnus Te DeumHymnus Te Deum
  12. 🔍 34% Te DeumTe Deum
  13. 🔍 34% Te DeumTe Deum
  14. 🔍 34% Te DeumTe Deum
  15. 🔍 33% Hymnus Te DeumHymnus Te Deum
  16. 🔍 33% Passio DNJC secundum MarcumPassio DNJC secundum Marcum
  17. 🔍 33% Te Deum (sec. mor. Rom)Te Deum (sec. mor. Rom)
  18. 🔍 32% Te Deum (sec. mor. Rom.)Te Deum (sec. mor. Rom.)
  19. 🔍 32% Aurora Jam Spargit Polum (hiemalis)Aurora Jam Spargit Polum (hiemalis)
  20. 🔍 32% Te Deum (tonus monasticus)Te Deum (tonus monasticus)
  21. 🔍 32% Te DeumTe Deum
  22. 🔍 32% Te DeumTe Deum
  23. 🔍 32% Gloria IIGloria II
  24. 🔍 32% Te DeumTe Deum
  25. 🔍 32% Te Deum laudamus (tonus simplex)Te Deum laudamus (tonus simplex)
  26. 🔍 32% Te Deum laudamus (tonus solemnis)Te Deum laudamus (tonus solemnis)
  27. 🔍 31% Gloria XV (forma ordinaria)Gloria XV (forma ordinaria)
  28. 🔍 31% Somno refectis artubusSomno refectis artubus
  29. 🔍 31% Tu Trinitatis UnitasTu Trinitatis Unitas
  30. 🔍 31% Passio DNJC secundum LucamPassio DNJC secundum Lucam
  31. 🔍 31% Passio Domini nostri Jesu Christi secundum Marcum - ANNO BPassio Domini nostri Jesu Christi secundum Marcum - ANNO B
  32. 🔍 31% Aurora iamAurora iam
  33. 🔍 31% Te Deum (tonus solemnis)Te Deum (tonus solemnis)
  34. 🔍 31% Gloria XIIIGloria XIII
  35. 🔍 31% Legis sacrataeLegis sacratae
  36. 🔍 31% Passio DNJC secundum MatthaeumPassio DNJC secundum Matthaeum
  37. 🔍 31% Credo ICredo I
  38. 🔍 30% Aeterna caeli gloriaAeterna caeli gloria
  39. 🔍 30% Miserere mei... secundumMiserere mei... secundum
  40. 🔍 30% Adoro te devoteAdoro te devote
  41. 🔍 30% Exsultet jam AngelicaExsultet jam Angelica
  42. 🔍 30% O lux beata TrinitasO lux beata Trinitas
  43. 🔍 30% Te Deum (Solemn tone)Te Deum (Solemn tone)
  44. 🔍 30% O lux beata Trinitas (aestivalis)O lux beata Trinitas (aestivalis)
  45. 🔍 30% Somno refectisSomno refectis
  46. 🔍 30% Nox atra rerum contegitNox atra rerum contegit
  47. 🔍 30% Ternis horarum (In dominicis per annum)Ternis horarum (In dominicis per annum)
  48. 🔍 30% Te Deum (Simple tone)Te Deum (Simple tone)
  49. 🔍 30% Ales diei nuntius (aestivalis)Ales diei nuntius (aestivalis)
  50. 🔍 30% Regis superni nuntiaRegis superni nuntia
  51. 🔍 30% Passio DNJC secundum MatthaeumPassio DNJC secundum Matthaeum
  52. 🔍 30% Credo IICredo II
  53. 🔍 30% O lux beata Trinitas (aestivalis)O lux beata Trinitas (aestivalis)
  54. 🔍 30% Passio Domini nostri Jesu Christi secundum Lucam - ANNO CPassio Domini nostri Jesu Christi secundum Lucam - ANNO C
  55. 🔍 30% Martyr Dei qui unicumMartyr Dei qui unicum
  56. 🔍 29% Jam Lucis Orto T.P.Jam Lucis Orto T.P.
  57. 🔍 29% Ternis horarum (In feriis per annum)Ternis horarum (In feriis per annum)
  58. 🔍 29% Quodcumque vinclisQuodcumque vinclis
  59. 🔍 29% Gertrudis arca NuminisGertrudis arca Numinis
  60. 🔍 29% Aeterna caeli gloria (in Aestate)Aeterna caeli gloria (in Aestate)
  61. 🔍 29% Ave Regis AngelorumAve Regis Angelorum
  62. 🔍 29% Gloria IGloria I
  63. 🔍 29% Tu Trinitatis UnitasTu Trinitatis Unitas
  64. 🔍 29% Aeterna caeli gloria (aestivalis)Aeterna caeli gloria (aestivalis)
  65. 🔍 29% Jam lucis orto sidere (Feriis et Officiis Simplicibus per Annum)Jam lucis orto sidere (Feriis et Officiis Simplicibus per Annum)