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% Petrus novusPetrus novus
  2. 🔍 27% Ascendit DeusAscendit Deus
  3. 🔍 26% Angelus autem DominiAngelus autem Domini
  4. 🔍 25% Beatus PetrusBeatus Petrus
  5. 🔍 25% Alleluia laudate DominumAlleluia laudate Dominum
  6. 🔍 25% Petrus ApostolusPetrus Apostolus
  7. 🔍 24% Chorus novae IerusalemChorus novae Ierusalem
  8. 🔍 24% Alleluia Fer. VI T.P. IAlleluia Fer. VI T.P. I
  9. 🔍 24% Alleluia Dominus regnavitAlleluia Dominus regnavit
  10. 🔍 24% Descendit SpiritusDescendit Spiritus
  11. 🔍 23% Tu es Petrus (Antiphona)Tu es Petrus (Antiphona)
  12. 🔍 23% CrucifixusCrucifixus
  13. 🔍 23% Alleluia Fer. V T.P. IAlleluia Fer. V T.P. I
  14. 🔍 22% Respondens autem PetrusRespondens autem Petrus
  15. 🔍 22% Ascendit fumus... allel.Ascendit fumus... allel.
  16. 🔍 22% Nunc Sancte nobis SpiritusNunc Sancte nobis Spiritus
  17. 🔍 22% Alleluia. Dom. LaudAlleluia. Dom. Laud
  18. 🔍 22% Alleluia Fer. IV T.P. IAlleluia Fer. IV T.P. I
  19. 🔍 22% Pauper sumPauper sum
  20. 🔍 22% Hodie Simon PetrusHodie Simon Petrus
  21. 🔍 22% Amen... dico... qui creditAmen... dico... qui credit
  22. 🔍 22% Alleluia Fer. VI T.P. IIAlleluia Fer. VI T.P. II
  23. 🔍 22% Petrus et JoannesPetrus et Joannes
  24. 🔍 22% Hodie Simon PetrusHodie Simon Petrus
  25. 🔍 22% Hodie Simon PetrusHodie Simon Petrus
  26. 🔍 22% Domus meaDomus mea
  27. 🔍 21% Alleluia (ant. mode I)Alleluia (ant. mode I)
  28. 🔍 21% Alleluia Sabb. T.P. IAlleluia Sabb. T.P. I
  29. 🔍 21% Alleluia Fer. V T.P. IIAlleluia Fer. V T.P. II
  30. 🔍 21% Ascendit DeusAscendit Deus
  31. 🔍 21% Tu es PetrusTu es Petrus
  32. 🔍 21% Hodie Simon PetrusHodie Simon Petrus
  33. 🔍 21% Alleluia Fer. III T.P. IAlleluia Fer. III T.P. I
  34. 🔍 21% Hodie MariaHodie Maria
  35. 🔍 21% Benedictus esBenedictus es
  36. 🔍 21% Alleluia Fer. II T.P. IAlleluia Fer. II T.P. I
  37. 🔍 21% Alleluia Fer. II T.P. IIAlleluia Fer. II T.P. II
  38. 🔍 21% Alleluia Fer. IV T.P. IIAlleluia Fer. IV T.P. II
  39. 🔍 21% Alleluia Fer. III T.P. IIAlleluia Fer. III T.P. II
  40. 🔍 21% Christe sanctorumChriste sanctorum
  41. 🔍 21% Et ecce terrae motusEt ecce terrae motus
  42. 🔍 21% In velamento clamabuntIn velamento clamabunt
  43. 🔍 21% Alleluia Spiritus ParaclitusAlleluia Spiritus Paraclitus
  44. 🔍 21% LaudamusLaudamus
  45. 🔍 21% Alleluia (Sabb. T.P.) (II)Alleluia (Sabb. T.P.) (II)
  46. 🔍 20% Hi sunt qui venerunt (II)Hi sunt qui venerunt (II)
  47. 🔍 20% Ascendit DeusAscendit Deus
  48. 🔍 20% Iste confessor (I)Iste confessor (I)
  49. 🔍 20% Laetare Virgo MaterLaetare Virgo Mater
  50. 🔍 20% Elevata estElevata est
  51. 🔍 20% Vexilla ChristusVexilla Christus
  52. 🔍 20% Hodie completi suntHodie completi sunt
  53. 🔍 20% O ThomaO Thoma
  54. 🔍 20% Alleluia Dom. Prim. T.P.Alleluia Dom. Prim. T.P.
  55. 🔍 20% Notum fecitNotum fecit
  56. 🔍 20% Alleluia (Dom. Non. T.P.)Alleluia (Dom. Non. T.P.)
  57. 🔍 20% Alleluia Dom. Compl. T.P. IAlleluia Dom. Compl. T.P. I
  58. 🔍 20% Alleluia (ant. mode 3)Alleluia (ant. mode 3)
  59. 🔍 20% Alleluia (ant. mode 4)Alleluia (ant. mode 4)
  60. 🔍 20% Alleluia (ant. mode 6)Alleluia (ant. mode 6)
  61. 🔍 20% Alleluia (Dom. Tert. T.P.)Alleluia (Dom. Tert. T.P.)
  62. 🔍 20% Regina caeliRegina caeli
  63. 🔍 20% Regina caeli (Officium Parvum)Regina caeli (Officium Parvum)
  64. 🔍 19% Virginis proles (I)Virginis proles (I)
  65. 🔍 19% O lux beata Trinitas (hiemalis)O lux beata Trinitas (hiemalis)