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% Exsultet caelum (I)Exsultet caelum (I)
  2. 🔍 63% Defensor alme HispaniaeDefensor alme Hispaniae
  3. 🔍 63% Exsultet caelum (II)Exsultet caelum (II)
  4. 🔍 62% Jesu salus mortaliumJesu salus mortalium
  5. 🔍 58% Exsultet caelum (III)Exsultet caelum (III)
  6. 🔍 55% Te lucis ante terminum (in Festis I classis)Te lucis ante terminum (in Festis I classis)
  7. 🔍 51% Exsultet orbis gaudiisExsultet orbis gaudiis
  8. 🔍 50% Exsultet orbis gaudiisExsultet orbis gaudiis
  9. 🔍 49% Exsultet caelum laudibus (modus 4)Exsultet caelum laudibus (modus 4)
  10. 🔍 44% Exsultet caelum gaudibus (S. Joanni Evangelistae)Exsultet caelum gaudibus (S. Joanni Evangelistae)
  11. 🔍 44% Exsultet caelum (IV)Exsultet caelum (IV)
  12. 🔍 42% Gloria IX (forma ordinaria)Gloria IX (forma ordinaria)
  13. 🔍 42% Mysterium EcclesiaeMysterium Ecclesiae
  14. 🔍 42% Gloria VGloria V
  15. 🔍 41% Deus tuorum I Cl.Deus tuorum I Cl.
  16. 🔍 40% O lux beata CaelitumO lux beata Caelitum
  17. 🔍 40% O lux beata CaelitumO lux beata Caelitum
  18. 🔍 40% O lux beata CaelitumO lux beata Caelitum
  19. 🔍 39% O lux beata CaelitumO lux beata Caelitum
  20. 🔍 39% O lux beata CaelitumO lux beata Caelitum
  21. 🔍 39% Exsultet caelum (IIIa)Exsultet caelum (IIIa)
  22. 🔍 38% Jam lucis orto sidere (In Tempore Passionis)Jam lucis orto sidere (In Tempore Passionis)
  23. 🔍 38% O gente felix hospitaO gente felix hospita
  24. 🔍 38% Jam lucis orto sidere (In tempore Passionis)Jam lucis orto sidere (In tempore Passionis)
  25. 🔍 37% Sanctorum meritis inclyta gaudiaSanctorum meritis inclyta gaudia
  26. 🔍 37% Quodcumque ligaverisQuodcumque ligaveris
  27. 🔍 37% Te lucis ante terminum (Tot. dupl. I Cl.)Te lucis ante terminum (Tot. dupl. I Cl.)
  28. 🔍 37% A solis ortusA solis ortus
  29. 🔍 37% Deus tuorum militumDeus tuorum militum
  30. 🔍 36% Salvete Christi vulneraSalvete Christi vulnera
  31. 🔍 36% Jesu Redemptor omnium (confes.)Jesu Redemptor omnium (confes.)
  32. 🔍 36% Gloria IXGloria IX
  33. 🔍 36% Deus tuorum militumDeus tuorum militum
  34. 🔍 36% Deus tuorum militumDeus tuorum militum
  35. 🔍 36% Deus tuorum militumDeus tuorum militum
  36. 🔍 36% Doctori gentium!Doctori gentium!
  37. 🔍 36% Hostis HerodesHostis Herodes
  38. 🔍 35% Deus tuorum militumDeus tuorum militum
  39. 🔍 35% Jam Christus astra ascenderatJam Christus astra ascenderat
  40. 🔍 35% Venite exultemus IIIVenite exultemus III
  41. 🔍 35% Deus tuorum II Cl.Deus tuorum II Cl.
  42. 🔍 35% Aeterne sol qui lumineAeterne sol qui lumine
  43. 🔍 35% Christe caelorum DomineChriste caelorum Domine
  44. 🔍 35% Laudes clarasLaudes claras
  45. 🔍 35% Ut Antonini gloriamUt Antonini gloriam
  46. 🔍 34% Rex gloriose Martyrum (another chant)Rex gloriose Martyrum (another chant)
  47. 🔍 34% Veni Redemptor gentiumVeni Redemptor gentium
  48. 🔍 34% Hodiernae lux dieiHodiernae lux diei
  49. 🔍 34% Ad regias Agni dapesAd regias Agni dapes
  50. 🔍 34% Libera me Domine de morteLibera me Domine de morte
  51. 🔍 34% Rex gloriose Martyrum (Alter tonus)Rex gloriose Martyrum (Alter tonus)
  52. 🔍 34% Jam lucis orto sidere (Solemnitatibus)Jam lucis orto sidere (Solemnitatibus)
  53. 🔍 33% In voluntateIn voluntate
  54. 🔍 33% Jam Christus astra ascenderatJam Christus astra ascenderat
  55. 🔍 33% Te DeumTe Deum
  56. 🔍 33% Te DeumTe Deum
  57. 🔍 33% Summae Deus clementiae septemSummae Deus clementiae septem
  58. 🔍 33% Ad regias Agni dapesAd regias Agni dapes
  59. 🔍 33% Te beata sponsa ChristiTe beata sponsa Christi
  60. 🔍 33% Exsultet iam angelica (brevior)Exsultet iam angelica (brevior)
  61. 🔍 33% Exsultet iam angelicaExsultet iam angelica
  62. 🔍 33% En ut superbaEn ut superba
  63. 🔍 33% Beata nobisBeata nobis
  64. 🔍 33% Gloria IVGloria IV
  65. 🔍 32% O lux et decusO lux et decus