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% Tristes erant Apostoli (In Ascensione)Tristes erant Apostoli (In Ascensione)
  2. 🔍 98% Tristes erant ApostoliTristes erant Apostoli
  3. 🔍 78% Tristes erant ApostoliTristes erant Apostoli
  4. 🔍 75% Athleta Christi nobilisAthleta Christi nobilis
  5. 🔍 75% Martyr Dei VenantiusMartyr Dei Venantius
  6. 🔍 68% Tristes erant ApostoliTristes erant Apostoli
  7. 🔍 65% Paschale mundo gaudium (In Ascensione)Paschale mundo gaudium (In Ascensione)
  8. 🔍 63% Paschale mundo gaudiumPaschale mundo gaudium
  9. 🔍 62% Tristes erant ApostoliTristes erant Apostoli
  10. 🔍 59% Claro paschali gaudioClaro paschali gaudio
  11. 🔍 59% Invicte Martyr unicum (In Ascensione)Invicte Martyr unicum (In Ascensione)
  12. 🔍 59% Deus tuorum militum (In Ascensione)Deus tuorum militum (In Ascensione)
  13. 🔍 58% Fortem virili (Tristes erant tonus)Fortem virili (Tristes erant tonus)
  14. 🔍 57% Rex gloriose Martyrum (In Ascensione)Rex gloriose Martyrum (In Ascensione)
  15. 🔍 56% Dum nocte pulsa LuciferDum nocte pulsa Lucifer
  16. 🔍 56% Jesu corona Virginum (Tristes erant Tonus)Jesu corona Virginum (Tristes erant Tonus)
  17. 🔍 56% Dum Nocte PulsaDum Nocte Pulsa
  18. 🔍 56% Maiole consors procerumMaiole consors procerum
  19. 🔍 56% Deus tuorum militum (Tempore Paschali)Deus tuorum militum (Tempore Paschali)
  20. 🔍 56% Jesu corona Virginum (In Tempore Ascensionis)Jesu corona Virginum (In Tempore Ascensionis)
  21. 🔍 55% Jesu corona Virginum (In Tempore Paschali)Jesu corona Virginum (In Tempore Paschali)
  22. 🔍 55% Jesu Redemptor omnium (T. Paschali)Jesu Redemptor omnium (T. Paschali)
  23. 🔍 55% Invicte Martyr unicum (Temp. Pasch.)Invicte Martyr unicum (Temp. Pasch.)
  24. 🔍 55% Salve virilis pectoris (in Tempore Paschali)Salve virilis pectoris (in Tempore Paschali)
  25. 🔍 54% Rex gloriose Martyrum (Tempore Paschali)Rex gloriose Martyrum (Tempore Paschali)
  26. 🔍 53% Triumphat mundi principem (in Tempore Paschali)Triumphat mundi principem (in Tempore Paschali)
  27. 🔍 53% Paschale mundoPaschale mundo
  28. 🔍 53% Martyr Dei VenantiusMartyr Dei Venantius
  29. 🔍 52% Summi sacerdos Numinis (in Tempore Paschali)Summi sacerdos Numinis (in Tempore Paschali)
  30. 🔍 48% Rex Gloriose Martyrum (T.P.)Rex Gloriose Martyrum (T.P.)
  31. 🔍 46% Exsultet caelum (II)Exsultet caelum (II)
  32. 🔍 42% Deus tuorum II Cl.Deus tuorum II Cl.
  33. 🔍 41% Jam lucis orto sidere (In Ascensione)Jam lucis orto sidere (In Ascensione)
  34. 🔍 41% Quicumque ChristumQuicumque Christum
  35. 🔍 41% Rerum Deus tenax vigor (In Ascensione)Rerum Deus tenax vigor (In Ascensione)
  36. 🔍 40% Rector potens verax Deus (In Ascensione)Rector potens verax Deus (In Ascensione)
  37. 🔍 40% Jesu nostra redemptioJesu nostra redemptio
  38. 🔍 40% Jam lucis orto sidere (In Transfiguratione)Jam lucis orto sidere (In Transfiguratione)
  39. 🔍 40% Quicumque Christum quaeritisQuicumque Christum quaeritis
  40. 🔍 40% Salutis humanae SatorSalutis humanae Sator
  41. 🔍 40% Jam lucis orto sidere (In Ascensione)Jam lucis orto sidere (In Ascensione)
  42. 🔍 39% Jesu coronaJesu corona
  43. 🔍 39% Nunc sancte nobis Spiritus (In Ascensione)Nunc sancte nobis Spiritus (In Ascensione)
  44. 🔍 39% Rector potens verax Deus (In Transfiguratione)Rector potens verax Deus (In Transfiguratione)
  45. 🔍 39% Rerum Deus tenax vigor (In Transfiguratione)Rerum Deus tenax vigor (In Transfiguratione)
  46. 🔍 38% Rector potens (In Ascensione)Rector potens (In Ascensione)
  47. 🔍 38% Te lucis ante terminum (In Tempore Ascensionis)Te lucis ante terminum (In Tempore Ascensionis)
  48. 🔍 38% Rerum deus tenax vigor (In Ascensione)Rerum deus tenax vigor (In Ascensione)
  49. 🔍 38% Jucunda PatrumJucunda Patrum
  50. 🔍 38% Nunc sancte nobis Spiritus (In Transfiguratione)Nunc sancte nobis Spiritus (In Transfiguratione)
  51. 🔍 36% Nunc Sancte nobis (In Ascensione)Nunc Sancte nobis (In Ascensione)
  52. 🔍 35% Chorus novae IerusalemChorus novae Ierusalem
  53. 🔍 33% Aeterne Rex altissimeAeterne Rex altissime
  54. 🔍 33% Te lucis ante terminum (In Ascensione)Te lucis ante terminum (In Ascensione)
  55. 🔍 33% Te Deum (tonus solemnis)Te Deum (tonus solemnis)
  56. 🔍 32% Te Deum (Solemn tone)Te Deum (Solemn tone)
  57. 🔍 32% Ave maris stella (another chant) (2)Ave maris stella (another chant) (2)
  58. 🔍 32% Aeterna... Apostolorum (I)Aeterna... Apostolorum (I)
  59. 🔍 32% O gloriosa DominaO gloriosa Domina
  60. 🔍 32% Te Deum laudamus (tonus solemnis)Te Deum laudamus (tonus solemnis)
  61. 🔍 31% Quicumque Christum quaeritisQuicumque Christum quaeritis
  62. 🔍 31% Gaude mater AnnaGaude mater Anna
  63. 🔍 31% Te lucis ante terminum (In Transfiguratione)Te lucis ante terminum (In Transfiguratione)
  64. 🔍 31% Crux fidelisCrux fidelis
  65. 🔍 30% O quantum in CruceO quantum in Cruce