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% Petri gradumPetri gradum
  2. 🔍 33% Gregorius septiformi gratiaGregorius septiformi gratia
  3. 🔍 32% Gregorius in vita suaGregorius in vita sua
  4. 🔍 27% Iste Confessor (Conf. not Bishop) 6Iste Confessor (Conf. not Bishop) 6
  5. 🔍 27% Iste Confessor (Conf. not Bishop) (another chant)Iste Confessor (Conf. not Bishop) (another chant)
  6. 🔍 26% Blandina fortis adolescentiaBlandina fortis adolescentia
  7. 🔍 26% O dignissima Christi sponsaO dignissima Christi sponsa
  8. 🔍 25% Dum esset summus PontifexDum esset summus Pontifex
  9. 🔍 25% Pastor vigilantissimusPastor vigilantissimus
  10. 🔍 23% Pastor vigilantissimusPastor vigilantissimus
  11. 🔍 23% Hodie Simon PetrusHodie Simon Petrus
  12. 🔍 23% Praesul invictissimusPraesul invictissimus
  13. 🔍 23% Gregorius septiformiGregorius septiformi
  14. 🔍 23% Beatus GregoriusBeatus Gregorius
  15. 🔍 23% Spiritus et animae justorumSpiritus et animae justorum
  16. 🔍 22% Plenus dierumPlenus dierum
  17. 🔍 22% Non recedetNon recedet
  18. 🔍 22% Vir Domini Benedictus (tonus 1f)Vir Domini Benedictus (tonus 1f)
  19. 🔍 22% Dum esset SummusDum esset Summus
  20. 🔍 22% O Beatum virum qui spretoO Beatum virum qui spreto
  21. 🔍 22% Super omniaSuper omnia
  22. 🔍 21% Dixerunt mundi rectoresDixerunt mundi rectores
  23. 🔍 21% Exsultet jam AngelicaExsultet jam Angelica
  24. 🔍 21% Exsultans spiritus PetriExsultans spiritus Petri
  25. 🔍 21% Super omnia ligna (T.P.)Super omnia ligna (T.P.)
  26. 🔍 21% Domine Rex omnipotensDomine Rex omnipotens
  27. 🔍 21% Amavit eum DominusAmavit eum Dominus
  28. 🔍 21% Super omniaSuper omnia
  29. 🔍 21% Benedicite sancti et humiles cordeBenedicite sancti et humiles corde
  30. 🔍 21% Egredimini et videte filiae Sion (Ant.)Egredimini et videte filiae Sion (Ant.)
  31. 🔍 21% Vide DomineVide Domine
  32. 🔍 21% Tollite iugum meumTollite iugum meum
  33. 🔍 20% Ecce levavit ad gentesEcce levavit ad gentes
  34. 🔍 20% Exsultet iam angelicaExsultet iam angelica
  35. 🔍 20% Amavit eum Dominus (Resp. Br. T.P.)Amavit eum Dominus (Resp. Br. T.P.)
  36. 🔍 20% In medio EcclesiaeIn medio Ecclesiae
  37. 🔍 20% Sursum sonetSursum sonet
  38. 🔍 20% Custodivit eam Angelus ejusCustodivit eam Angelus ejus
  39. 🔍 20% Attalus vehementer a populoAttalus vehementer a populo
  40. 🔍 20% Gratia DeiGratia Dei
  41. 🔍 20% Dilexi justitiamDilexi justitiam
  42. 🔍 20% Iste Confessor (Conf Pont in Duplicibus Majoribus)Iste Confessor (Conf Pont in Duplicibus Majoribus)
  43. 🔍 20% Exsultet omnium turba...ScolasticaeExsultet omnium turba...Scolasticae
  44. 🔍 20% Surrexit GregoriusSurrexit Gregorius
  45. 🔍 20% Praefatio solemnis de sancto Joanne BaptistaPraefatio solemnis de sancto Joanne Baptista
  46. 🔍 20% Filiae JerusalemFiliae Jerusalem
  47. 🔍 20% Exsultet iam angelicaExsultet iam angelica
  48. 🔍 20% Stans beata AgathaStans beata Agatha
  49. 🔍 20% Praeco verbi salutarisPraeco verbi salutaris
  50. 🔍 20% Victimae paschaliVictimae paschali
  51. 🔍 19% Vivo autem ego jam non egoVivo autem ego jam non ego
  52. 🔍 19% Hodie sanctus MaurusHodie sanctus Maurus
  53. 🔍 19% Custodivit eamCustodivit eam
  54. 🔍 19% Petrus beatusPetrus beatus
  55. 🔍 19% Luce divinaLuce divina
  56. 🔍 19% Hodie completi suntHodie completi sunt
  57. 🔍 19% Exsultet jam AngelicaExsultet jam Angelica
  58. 🔍 19% Jesu Fili summi PatrisJesu Fili summi Patris
  59. 🔍 19% Exsultet iam angelica (brevior)Exsultet iam angelica (brevior)
  60. 🔍 19% Te sancte rursus LudoviceTe sancte rursus Ludovice
  61. 🔍 19% Amplificatus est (T.P.)Amplificatus est (T.P.)
  62. 🔍 19% Interrogatus a praesideInterrogatus a praeside
  63. 🔍 19% Dei fideDei fide
  64. 🔍 19% Pro eo... inquitPro eo... inquit
  65. 🔍 19% Beata RadegundisBeata Radegundis