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% Imperatrix AngelorumImperatrix Angelorum
  2. 🔍 29% PentecostesPentecostes
  3. 🔍 28% Impositio diadematis B. M. V.Impositio diadematis B. M. V.
  4. 🔍 26% Pentecostes (Tempore paschali)Pentecostes (Tempore paschali)
  5. 🔍 25% Benedicta sit creatrixBenedicta sit creatrix
  6. 🔍 24% Benedicta sit creatrixBenedicta sit creatrix
  7. 🔍 23% Benedicta sit sanctaBenedicta sit sancta
  8. 🔍 23% Bajulatio CrucisBajulatio Crucis
  9. 🔍 23% Benedicta sit creatrixBenedicta sit creatrix
  10. 🔍 23% AnnuntiatioAnnuntiatio
  11. 🔍 23% Assumptio B. M. V.Assumptio B. M. V.
  12. 🔍 22% CrucifixioCrucifixio
  13. 🔍 22% Gloria SanctorumGloria Sanctorum
  14. 🔍 22% Purificatio B. M. V. (Alia antiphona)Purificatio B. M. V. (Alia antiphona)
  15. 🔍 22% AscensioAscensio
  16. 🔍 21% Sancta MariaSancta Maria
  17. 🔍 21% Ave Virgo virginumAve Virgo virginum
  18. 🔍 21% ResurrectioResurrectio
  19. 🔍 21% Impositio diadematis B. M. V. (Alia antiphona)Impositio diadematis B. M. V. (Alia antiphona)
  20. 🔍 21% Nativitas DominiNativitas Domini
  21. 🔍 21% Benedicta sit creatrixBenedicta sit creatrix
  22. 🔍 21% Inventio Jesu in temploInventio Jesu in templo
  23. 🔍 21% QuaesiviQuaesivi
  24. 🔍 21% FlagellatioFlagellatio
  25. 🔍 20% Regem angelorum (simpl.)Regem angelorum (simpl.)
  26. 🔍 20% VisitatioVisitatio
  27. 🔍 20% Ascensio (Tempore paschali)Ascensio (Tempore paschali)
  28. 🔍 19% Gaude Dei GenitrixGaude Dei Genitrix
  29. 🔍 19% Nativitas Domini (Alia antiphona)Nativitas Domini (Alia antiphona)
  30. 🔍 19% In conspectu AngelorumIn conspectu Angelorum
  31. 🔍 19% Omnis expertemOmnis expertem
  32. 🔍 18% In omnem terramIn omnem terram
  33. 🔍 18% Impositio coronae spineaeImpositio coronae spineae
  34. 🔍 18% MemorareMemorare
  35. 🔍 18% Angelorum escaAngelorum esca
  36. 🔍 18% Crucifixio (Alia antiphona)Crucifixio (Alia antiphona)
  37. 🔍 18% Rector potens (In Adventu)Rector potens (In Adventu)
  38. 🔍 18% Rector potens (In Adventu)Rector potens (In Adventu)
  39. 🔍 18% Assumptio B. M. V. (Alia antiphona)Assumptio B. M. V. (Alia antiphona)
  40. 🔍 18% Post partum VirgoPost partum Virgo
  41. 🔍 18% Resurrectio (Tempore paschali)Resurrectio (Tempore paschali)
  42. 🔍 18% Audi benigne ConditorAudi benigne Conditor
  43. 🔍 18% Audi benigne ConditorAudi benigne Conditor
  44. 🔍 18% Angelorum escaAngelorum esca
  45. 🔍 18% Sub tuum praesidiumSub tuum praesidium
  46. 🔍 18% Virgo clemensVirgo clemens
  47. 🔍 18% In conspectu angelorumIn conspectu angelorum
  48. 🔍 18% Celsi meritiCelsi meriti
  49. 🔍 17% Exaltata est sanctaExaltata est sancta
  50. 🔍 17% Angelorum escaAngelorum esca
  51. 🔍 17% Ave MaterAve Mater
  52. 🔍 17% Surge jam terrisSurge jam terris
  53. 🔍 17% Ecce panis AngelorumEcce panis Angelorum
  54. 🔍 17% Exaltata es, sancta Dei GenitrixExaltata es, sancta Dei Genitrix
  55. 🔍 17% Salve mira creaturaSalve mira creatura
  56. 🔍 17% O Maria vitae viaO Maria vitae via
  57. 🔍 17% MemorareMemorare
  58. 🔍 17% Beata Dei genetrix nitorBeata Dei genetrix nitor
  59. 🔍 17% In conspectu Angelorum (Resp Br)In conspectu Angelorum (Resp Br)
  60. 🔍 17% In conspectu Angelorum (Paschal Time)In conspectu Angelorum (Paschal Time)
  61. 🔍 17% O beata MaterO beata Mater
  62. 🔍 17% Audi benigne ConditorAudi benigne Conditor
  63. 🔍 17% Ego sum Raphael ... alleluiaEgo sum Raphael ... alleluia
  64. 🔍 17% Rector potens (In Tempore Passionis)Rector potens (In Tempore Passionis)
  65. 🔍 17% Iesu salvator saeculiIesu salvator saeculi