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% Optime PaterOptime Pater
  2. 🔍 67% De quacumqueDe quacumque
  3. 🔍 64% AemulorAemulor
  4. 🔍 36% Stetit PontifexStetit Pontifex
  5. 🔍 34% Beata nobis gaudiaBeata nobis gaudia
  6. 🔍 34% Beata nobis gaudiaBeata nobis gaudia
  7. 🔍 34% Felix namque esFelix namque es
  8. 🔍 33% Quomodo fiet istudQuomodo fiet istud
  9. 🔍 33% Ave Regina caelorumAve Regina caelorum
  10. 🔍 33% Te saeculorum PrincipemTe saeculorum Principem
  11. 🔍 33% EmulorEmulor
  12. 🔍 32% Stetit Angelus (Off)Stetit Angelus (Off)
  13. 🔍 32% Inclinet DominusInclinet Dominus
  14. 🔍 32% Stetit pontifexStetit pontifex
  15. 🔍 31% Justorum animae (Off.)Justorum animae (Off.)
  16. 🔍 31% VerumtamenVerumtamen
  17. 🔍 31% Quam magnaQuam magna
  18. 🔍 31% Exsultet orbis gaudiis (Alter tonus)Exsultet orbis gaudiis (Alter tonus)
  19. 🔍 31% ConcaluitConcaluit
  20. 🔍 30% In Deo speravitIn Deo speravit
  21. 🔍 30% Alleluia (T.P. Invitatorium)Alleluia (T.P. Invitatorium)
  22. 🔍 30% Audita est quasi voxAudita est quasi vox
  23. 🔍 30% Cornelius centurioCornelius centurio
  24. 🔍 30% Te saeculorum PrincipemTe saeculorum Principem
  25. 🔍 30% Viri GalilaeiViri Galilaei
  26. 🔍 30% Surrexit Dominus etSurrexit Dominus et
  27. 🔍 29% Magne PaterMagne Pater
  28. 🔍 29% Hic MartinusHic Martinus
  29. 🔍 29% Rogavi pro teRogavi pro te
  30. 🔍 29% Propitius esto (All.)Propitius esto (All.)
  31. 🔍 28% Sertum gestansSertum gestans
  32. 🔍 28% Beata nobis gaudiaBeata nobis gaudia
  33. 🔍 28% Beatus es SimonBeatus es Simon
  34. 🔍 28% Beata nobis gaudiaBeata nobis gaudia
  35. 🔍 28% Beata nobisBeata nobis
  36. 🔍 28% Te saeculorum PrincipemTe saeculorum Principem
  37. 🔍 28% Ave Rex nosterAve Rex noster
  38. 🔍 28% Ave Rex nosterAve Rex noster
  39. 🔍 28% Per tuam crucemPer tuam crucem
  40. 🔍 27% Felix namque esFelix namque es
  41. 🔍 27% Christi milesChristi miles
  42. 🔍 27% Sideribus cunctisSideribus cunctis
  43. 🔍 27% Viri GalilaeiViri Galilaei
  44. 🔍 27% Stetit Angelus (Off)Stetit Angelus (Off)
  45. 🔍 27% Inclinet DominusInclinet Dominus
  46. 🔍 27% Posuisti Domine (All.)Posuisti Domine (All.)
  47. 🔍 27% Juravit DominusJuravit Dominus
  48. 🔍 27% Mittat vobisMittat vobis
  49. 🔍 27% VerumtamenVerumtamen
  50. 🔍 26% Beata AgathaBeata Agatha
  51. 🔍 26% Isti sunt duae olivaeIsti sunt duae olivae
  52. 🔍 26% Justorum animaeJustorum animae
  53. 🔍 26% Sancte PauleSancte Paule
  54. 🔍 26% Vexilla Regis prodeuntVexilla Regis prodeunt
  55. 🔍 26% Te sancte rursus LudoviceTe sancte rursus Ludovice
  56. 🔍 26% Exsultet orbis gaudiis (another chant)Exsultet orbis gaudiis (another chant)
  57. 🔍 26% Felix namque esFelix namque es
  58. 🔍 26% Stetit PontifexStetit Pontifex
  59. 🔍 26% SustinuimusSustinuimus
  60. 🔍 26% Dignus es DomineDignus es Domine
  61. 🔍 26% Spiritus DominiSpiritus Domini
  62. 🔍 26% Adesto sancta TrinitasAdesto sancta Trinitas
  63. 🔍 26% Stetit AngelusStetit Angelus
  64. 🔍 26% Iesu Salvator saeculiIesu Salvator saeculi
  65. 🔍 25% Juravit DominusJuravit Dominus