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% Felix namque esFelix namque es
  2. 🔍 61% Felix namque esFelix namque es
  3. 🔍 49% Ave Regina caelorumAve Regina caelorum
  4. 🔍 47% Stetit Angelus (Off)Stetit Angelus (Off)
  5. 🔍 45% Stetit PontifexStetit Pontifex
  6. 🔍 42% Obaudite meObaudite me
  7. 🔍 38% Justorum animae (Off.)Justorum animae (Off.)
  8. 🔍 38% Justorum animaeJustorum animae
  9. 🔍 37% Stetit pontifexStetit pontifex
  10. 🔍 35% Stetit Angelus (Off)Stetit Angelus (Off)
  11. 🔍 33% Stetit AngelusStetit Angelus
  12. 🔍 33% Stetit Angelus (Off, verses)Stetit Angelus (Off, verses)
  13. 🔍 33% Viri GalilaeiViri Galilaei
  14. 🔍 32% Justorum animaeJustorum animae
  15. 🔍 32% Felix namque esFelix namque es
  16. 🔍 31% Inclinet DominusInclinet Dominus
  17. 🔍 30% Beata nobis gaudiaBeata nobis gaudia
  18. 🔍 29% Beata nobis gaudiaBeata nobis gaudia
  19. 🔍 28% Viri GalilaeiViri Galilaei
  20. 🔍 27% Te saeculorum PrincipemTe saeculorum Principem
  21. 🔍 26% Stetit PontifexStetit Pontifex
  22. 🔍 26% Tu es Petrus (Offertorium)Tu es Petrus (Offertorium)
  23. 🔍 26% Inclinet DominusInclinet Dominus
  24. 🔍 26% Optime PaterOptime Pater
  25. 🔍 26% Ave Rex nosterAve Rex noster
  26. 🔍 26% Beata nobisBeata nobis
  27. 🔍 26% Beata nobis gaudiaBeata nobis gaudia
  28. 🔍 26% Felix namque esFelix namque es
  29. 🔍 26% Beata nobis gaudiaBeata nobis gaudia
  30. 🔍 26% Benedicta et venerabilisBenedicta et venerabilis
  31. 🔍 25% De quacumqueDe quacumque
  32. 🔍 25% Te saeculorum PrincipemTe saeculorum Principem
  33. 🔍 25% Stetit Angelus (Off)Stetit Angelus (Off)
  34. 🔍 25% Trinitas summoTrinitas summo
  35. 🔍 25% Justorum animae (Off.)Justorum animae (Off.)
  36. 🔍 25% Felix namque esFelix namque es
  37. 🔍 25% Quomodo fiet istudQuomodo fiet istud
  38. 🔍 24% Te saeculorum PrincipemTe saeculorum Principem
  39. 🔍 24% Ave Rex nosterAve Rex noster
  40. 🔍 24% AemulorAemulor
  41. 🔍 24% Sancte PauleSancte Paule
  42. 🔍 23% Felix namque esFelix namque es
  43. 🔍 23% ErueErue
  44. 🔍 23% VerumtamenVerumtamen
  45. 🔍 23% Tu es Petrus (Offertorium)Tu es Petrus (Offertorium)
  46. 🔍 23% Custodi meCustodi me
  47. 🔍 22% LoquebanturLoquebantur
  48. 🔍 22% Felix namqueFelix namque
  49. 🔍 22% DolorosaDolorosa
  50. 🔍 22% Audita est quasi voxAudita est quasi vox
  51. 🔍 22% Juravit DominusJuravit Dominus
  52. 🔍 22% Ave Rex nosterAve Rex noster
  53. 🔍 22% O salutaris Hostia IIIO salutaris Hostia III
  54. 🔍 22% Beata es Maria Mater DominiBeata es Maria Mater Domini
  55. 🔍 22% Rogavi pro teRogavi pro te
  56. 🔍 22% Benedicta et venerabilisBenedicta et venerabilis
  57. 🔍 21% Obaudite meObaudite me
  58. 🔍 21% EruditusEruditus
  59. 🔍 21% Iam ChristusIam Christus
  60. 🔍 21% Isti sunt duae olivaeIsti sunt duae olivae
  61. 🔍 21% Salva RedemptorSalva Redemptor
  62. 🔍 21% Vexilla Regis (Tempore Passionis)Vexilla Regis (Tempore Passionis)
  63. 🔍 21% Iesu Salvator saeculiIesu Salvator saeculi
  64. 🔍 21% Surrexit Dominus etSurrexit Dominus et
  65. 🔍 21% Vexilla Regis (Exaltatio Sanctae Crucis)Vexilla Regis (Exaltatio Sanctae Crucis)