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% Rex Gloriose Martyrum (T.P.)Rex Gloriose Martyrum (T.P.)
  2. 🔍 80% Paschale mundoPaschale mundo
  3. 🔍 49% Rex gloriose Martyrum (Tempore Paschali)Rex gloriose Martyrum (Tempore Paschali)
  4. 🔍 48% Tristes erant ApostoliTristes erant Apostoli
  5. 🔍 48% Rex gloriose Martyrum (In Ascensione)Rex gloriose Martyrum (In Ascensione)
  6. 🔍 48% Tristes erant Apostoli (In Ascensione)Tristes erant Apostoli (In Ascensione)
  7. 🔍 48% Martyr Dei VenantiusMartyr Dei Venantius
  8. 🔍 47% Deus tuorumDeus tuorum
  9. 🔍 47% Athleta Christi nobilisAthleta Christi nobilis
  10. 🔍 45% Rex gloriose MartyrumRex gloriose Martyrum
  11. 🔍 45% Adeste sanctiAdeste sancti
  12. 🔍 44% Rex gloriose MartyrumRex gloriose Martyrum
  13. 🔍 40% Jesu coronaJesu corona
  14. 🔍 40% Rex gloriose Martyrum (another chant)Rex gloriose Martyrum (another chant)
  15. 🔍 40% Rex gloriose MartyrumRex gloriose Martyrum
  16. 🔍 40% Jucunda PatrumJucunda Patrum
  17. 🔍 40% Rex glorioseRex gloriose
  18. 🔍 40% Rex gloriose Martyrum (Alter tonus)Rex gloriose Martyrum (Alter tonus)
  19. 🔍 39% Rex gloriose martyrumRex gloriose martyrum
  20. 🔍 35% Rex gloriose Martyrum (Alter tonus T. P.)Rex gloriose Martyrum (Alter tonus T. P.)
  21. 🔍 30% Quicumque ChristumQuicumque Christum
  22. 🔍 30% Deus tuorum militum (In Ascensione)Deus tuorum militum (In Ascensione)
  23. 🔍 30% Jam lucis orto sidere (In Ascensione)Jam lucis orto sidere (In Ascensione)
  24. 🔍 30% Quicumque Christum quaeritisQuicumque Christum quaeritis
  25. 🔍 30% Deus tuorum militum (Tempore Paschali)Deus tuorum militum (Tempore Paschali)
  26. 🔍 30% Rerum deus tenax vigor (In Ascensione)Rerum deus tenax vigor (In Ascensione)
  27. 🔍 30% Dum nocte pulsa LuciferDum nocte pulsa Lucifer
  28. 🔍 29% Fortem virili (Tristes erant tonus)Fortem virili (Tristes erant tonus)
  29. 🔍 29% Stella maris o MariaStella maris o Maria
  30. 🔍 29% Salutis humanae SatorSalutis humanae Sator
  31. 🔍 29% Rector potens (In Ascensione)Rector potens (In Ascensione)
  32. 🔍 29% Claro paschali gaudioClaro paschali gaudio
  33. 🔍 29% Jam lucis orto sidere (In Ascensione)Jam lucis orto sidere (In Ascensione)
  34. 🔍 29% Rerum Deus tenax vigor (In Ascensione)Rerum Deus tenax vigor (In Ascensione)
  35. 🔍 29% Jesu nostra redemptioJesu nostra redemptio
  36. 🔍 29% Invicte Martyr unicum (In Ascensione)Invicte Martyr unicum (In Ascensione)
  37. 🔍 29% Nunc sancte nobis Spiritus (In Ascensione)Nunc sancte nobis Spiritus (In Ascensione)
  38. 🔍 29% Nunc Sancte nobis (In Ascensione)Nunc Sancte nobis (In Ascensione)
  39. 🔍 29% Jesu corona Virginum (Tristes erant Tonus)Jesu corona Virginum (Tristes erant Tonus)
  40. 🔍 28% Invicte Martyr unicum (Temp. Pasch.)Invicte Martyr unicum (Temp. Pasch.)
  41. 🔍 28% Aeterne Rex altissimeAeterne Rex altissime
  42. 🔍 28% Paschale mundo gaudiumPaschale mundo gaudium
  43. 🔍 28% Jam lucis orto sidere (In Transfiguratione)Jam lucis orto sidere (In Transfiguratione)
  44. 🔍 28% Martyr Dei VenantiusMartyr Dei Venantius
  45. 🔍 28% Tristes erant ApostoliTristes erant Apostoli
  46. 🔍 28% Paschale mundo gaudium (In Ascensione)Paschale mundo gaudium (In Ascensione)
  47. 🔍 28% Nunc sancte nobis Spiritus (In Transfiguratione)Nunc sancte nobis Spiritus (In Transfiguratione)
  48. 🔍 28% Rerum Deus tenax vigor (In Transfiguratione)Rerum Deus tenax vigor (In Transfiguratione)
  49. 🔍 28% Fortem fidelemFortem fidelem
  50. 🔍 28% Te lucis ante terminum (In Tempore Ascensionis)Te lucis ante terminum (In Tempore Ascensionis)
  51. 🔍 28% Rector potens verax Deus (In Ascensione)Rector potens verax Deus (In Ascensione)
  52. 🔍 27% Rector potens verax Deus (In Transfiguratione)Rector potens verax Deus (In Transfiguratione)
  53. 🔍 27% Dum Nocte PulsaDum Nocte Pulsa
  54. 🔍 27% Jesu Redemptor omnium (T. Paschali)Jesu Redemptor omnium (T. Paschali)
  55. 🔍 26% Quicumque ChristumQuicumque Christum
  56. 🔍 26% Festa lux claroFesta lux claro
  57. 🔍 26% Jesu corona Virginum (In Tempore Ascensionis)Jesu corona Virginum (In Tempore Ascensionis)
  58. 🔍 26% Jesu corona Virginum (In Tempore Paschali)Jesu corona Virginum (In Tempore Paschali)
  59. 🔍 26% Maiole consors procerumMaiole consors procerum
  60. 🔍 26% Tristes erant ApostoliTristes erant Apostoli
  61. 🔍 25% O gloriosa DominaO gloriosa Domina
  62. 🔍 25% Amor Jesu dulcissimeAmor Jesu dulcissime
  63. 🔍 25% Triumphat mundi principem (in Tempore Paschali)Triumphat mundi principem (in Tempore Paschali)
  64. 🔍 25% Salve virilis pectoris (in Tempore Paschali)Salve virilis pectoris (in Tempore Paschali)
  65. 🔍 24% Tristes erant ApostoliTristes erant Apostoli