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% Nigra sum sed formosaNigra sum sed formosa
  2. 🔍 67% Nigra sumNigra sum
  3. 🔍 66% Nigra sum sed formosaNigra sum sed formosa
  4. 🔍 65% Nigra sumNigra sum
  5. 🔍 58% Nigra sumNigra sum
  6. 🔍 43% Nigra sumNigra sum
  7. 🔍 31% Dixit Angelus GabrielDixit Angelus Gabriel
  8. 🔍 31% Specie tuaSpecie tua
  9. 🔍 30% Notum fecit Dominus alleluiaNotum fecit Dominus alleluia
  10. 🔍 30% Adorate DeumAdorate Deum
  11. 🔍 29% Dilexit AndreamDilexit Andream
  12. 🔍 29% Ego sum qui sumEgo sum qui sum
  13. 🔍 29% Domine iste SanctusDomine iste Sanctus
  14. 🔍 29% Adorate DominumAdorate Dominum
  15. 🔍 29% Confirma hoc DeusConfirma hoc Deus
  16. 🔍 28% Beatus vir qui in lege ... voluntasBeatus vir qui in lege ... voluntas
  17. 🔍 28% Non invenientes JesumNon invenientes Jesum
  18. 🔍 28% O quam pulchra estO quam pulchra est
  19. 🔍 28% Ipse invocabit meIpse invocabit me
  20. 🔍 28% InvocantemInvocantem
  21. 🔍 28% CustodiebantCustodiebant
  22. 🔍 27% Gaude et laetare filia JerusalemGaude et laetare filia Jerusalem
  23. 🔍 27% Quam admirabileQuam admirabile
  24. 🔍 27% Justus DominusJustus Dominus
  25. 🔍 27% Dominus de coeloDominus de coelo
  26. 🔍 27% Justus DominusJustus Dominus
  27. 🔍 27% Accipe meAccipe me
  28. 🔍 26% O ineffabiliem virumO ineffabiliem virum
  29. 🔍 26% Rex exaltaturRex exaltatur
  30. 🔍 26% Trahe me... oleumTrahe me... oleum
  31. 🔍 26% Ibant parentesIbant parentes
  32. 🔍 26% Consurgens JosephConsurgens Joseph
  33. 🔍 26% Jesus cum essetJesus cum esset
  34. 🔍 26% Posuit os meumPosuit os meum
  35. 🔍 26% In universa terraIn universa terra
  36. 🔍 26% Laudemus Deum nostrum (singularis)Laudemus Deum nostrum (singularis)
  37. 🔍 26% Cum redirentCum redirent
  38. 🔍 26% In Deo salutare meumIn Deo salutare meum
  39. 🔍 25% Sanum ducam filiumSanum ducam filium
  40. 🔍 25% Domine in virtuteDomine in virtute
  41. 🔍 25% Ego dormiviEgo dormivi
  42. 🔍 25% Ascendit JosephAscendit Joseph
  43. 🔍 25% Alleluia noli flere MariaAlleluia noli flere Maria
  44. 🔍 25% Alleluia alleluia alleluia (Quinta T.P. in II Nocturno) Alleluia alleluia alleluia (Quinta T.P. in II Nocturno)
  45. 🔍 25% Ab insurgentibus in meAb insurgentibus in me
  46. 🔍 25% Missus est GabrielMissus est Gabriel
  47. 🔍 25% Voce meaVoce mea
  48. 🔍 25% ExaltabunturExaltabuntur
  49. 🔍 25% Revertere revertereRevertere revertere
  50. 🔍 25% Confido in DominoConfido in Domino
  51. 🔍 25% Alieni insurrexerunt in meAlieni insurrexerunt in me
  52. 🔍 25% Sana DomineSana Domine
  53. 🔍 24% Aedificavit DeusAedificavit Deus
  54. 🔍 24% ConvertereConvertere
  55. 🔍 24% Audiens JosephAudiens Joseph
  56. 🔍 24% Cum inducerent puerumCum inducerent puerum
  57. 🔍 24% Diffusa est gratiaDiffusa est gratia
  58. 🔍 24% Erexit JacobErexit Jacob
  59. 🔍 24% Alleluia alleluia alleluia (Quinta T.P. in III Nocturno)Alleluia alleluia alleluia (Quinta T.P. in III Nocturno)
  60. 🔍 24% Domine Dominus nosterDomine Dominus noster
  61. 🔍 24% Emitte spiritum tuumEmitte spiritum tuum
  62. 🔍 24% Lux orta est justisLux orta est justis
  63. 🔍 24% Inclina DomineInclina Domine
  64. 🔍 24% Sicut materSicut mater
  65. 🔍 24% DeficitDeficit