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% Novus athleta DominiNovus athleta Domini
  2. 🔍 71% Gaude Mater EcclesiaGaude Mater Ecclesia
  3. 🔍 68% Hymnum novaeHymnum novae
  4. 🔍 64% Deus tuorum militumDeus tuorum militum
  5. 🔍 64% Martyr Dei (I)Martyr Dei (I)
  6. 🔍 63% Aeterno RegiAeterno Regi
  7. 🔍 63% Quicumque ChristumQuicumque Christum
  8. 🔍 59% Amor Jesu dulcissimeAmor Jesu dulcissime
  9. 🔍 55% Novus athletaNovus athleta
  10. 🔍 43% Summi Parentis FilioSummi Parentis Filio
  11. 🔍 42% O salutaris Hostia IIO salutaris Hostia II
  12. 🔍 41% Ut Antonini gloriamUt Antonini gloriam
  13. 🔍 40% Auctor beate saeculiAuctor beate saeculi
  14. 🔍 39% Te lucis ante terminumTe lucis ante terminum
  15. 🔍 39% O cor amoris victimaO cor amoris victima
  16. 🔍 39% Jesu dulcisJesu dulcis
  17. 🔍 38% Quicumque certumQuicumque certum
  18. 🔍 38% Jesu nostra redemptioJesu nostra redemptio
  19. 🔍 35% Noe vero cumNoe vero cum
  20. 🔍 34% Lauda fidelisLauda fidelis
  21. 🔍 33% Hodiernae lux dieiHodiernae lux diei
  22. 🔍 33% Angelus Domini astititAngelus Domini astitit
  23. 🔍 33% O rex aeterne DomineO rex aeterne Domine
  24. 🔍 33% Venite exsultemus IVVenite exsultemus IV
  25. 🔍 33% Sanctorum meritis inclyta (Alter tonus)Sanctorum meritis inclyta (Alter tonus)
  26. 🔍 33% Custodes hominumCustodes hominum
  27. 🔍 32% Festivis resonent compitaFestivis resonent compita
  28. 🔍 32% Custodes hominum psallimusCustodes hominum psallimus
  29. 🔍 32% Festivis resonentFestivis resonent
  30. 🔍 32% Dum lux exoriturDum lux exoritur
  31. 🔍 31% Sanctorum meritis (another chant)Sanctorum meritis (another chant)
  32. 🔍 31% Qui te posthabitisQui te posthabitis
  33. 🔍 31% Venite exsultemus (mode 4e simplex)Venite exsultemus (mode 4e simplex)
  34. 🔍 31% In hoc HyacinthiIn hoc Hyacinthi
  35. 🔍 31% Custodes hominumCustodes hominum
  36. 🔍 30% Dicamus laudes DominoDicamus laudes Domino
  37. 🔍 29% Gaude Mater EcclesiaGaude Mater Ecclesia
  38. 🔍 29% Jam Christus astra ascenderatJam Christus astra ascenderat
  39. 🔍 29% Iste confessor (III)Iste confessor (III)
  40. 🔍 29% Roma Petro Glorietur (Another Tone)Roma Petro Glorietur (Another Tone)
  41. 🔍 29% Iste Confessorum Domini (in Feriis secundis)Iste Confessorum Domini (in Feriis secundis)
  42. 🔍 29% Custodes hominumCustodes hominum
  43. 🔍 29% Lux o decora patriaeLux o decora patriae
  44. 🔍 28% Apostolorum passio diemApostolorum passio diem
  45. 🔍 28% Exsultet caelum laudibus (modus 4)Exsultet caelum laudibus (modus 4)
  46. 🔍 28% Vexilla Regis prodeuntVexilla Regis prodeunt
  47. 🔍 28% O salutaris Hostia IIIO salutaris Hostia III
  48. 🔍 28% Impleta gaudentImpleta gaudent
  49. 🔍 28% CollaeteturCollaetetur
  50. 🔍 28% In caelesti hierarchiaIn caelesti hierarchia
  51. 🔍 28% Francisce, Christi signiferFrancisce, Christi signifer
  52. 🔍 28% Cohors beata SeraphimCohors beata Seraphim
  53. 🔍 28% Iste Confessor (Conf. Bishop) 2Iste Confessor (Conf. Bishop) 2
  54. 🔍 28% Proclamatio Nativitas DNIC (Octavo Kalendas ianuarii)Proclamatio Nativitas DNIC (Octavo Kalendas ianuarii)
  55. 🔍 28% Iste Confessor (Conf. Bishop) (another chant)Iste Confessor (Conf. Bishop) (another chant)
  56. 🔍 28% Ternis horarum terminisTernis horarum terminis
  57. 🔍 28% Domine Jesu ChristeDomine Jesu Christe
  58. 🔍 27% Rogavi Dominum meumRogavi Dominum meum
  59. 🔍 27% Eva virumEva virum
  60. 🔍 27% Beate martyr, prosperaBeate martyr, prospera
  61. 🔍 27% Claris conjubilaClaris conjubila
  62. 🔍 27% Qui luce splendesQui luce splendes
  63. 🔍 27% Qui luce splendesQui luce splendes
  64. 🔍 27% Praeclara qua tu gloriaPraeclara qua tu gloria
  65. 🔍 27% In Francisci filioIn Francisci filio