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% Summae Deus clementiae septemSummae Deus clementiae septem
  2. 🔍 86% Summae Deus clementiae septemSummae Deus clementiae septem
  3. 🔍 86% Summae Deus clemtiaeSummae Deus clemtiae
  4. 🔍 85% Summae Deus clementiaeSummae Deus clementiae
  5. 🔍 73% Summae Deus clementiae septemSummae Deus clementiae septem
  6. 🔍 60% Rerum Deus (in Festo Septem Dolorum BMV)Rerum Deus (in Festo Septem Dolorum BMV)
  7. 🔍 59% Rector potens (in Festo Septem Dolorum BMV)Rector potens (in Festo Septem Dolorum BMV)
  8. 🔍 58% Christe caelorum DomineChriste caelorum Domine
  9. 🔍 57% Nunc Sancte nobis (In Festo Septem Dolorum BMV)Nunc Sancte nobis (In Festo Septem Dolorum BMV)
  10. 🔍 57% Jam lucis orto sidere (In Tempore Passionis)Jam lucis orto sidere (In Tempore Passionis)
  11. 🔍 54% Te lucis ante terminum (Septem Dolorum)Te lucis ante terminum (Septem Dolorum)
  12. 🔍 53% Rector potens verax Deus (Septem Dolorum)Rector potens verax Deus (Septem Dolorum)
  13. 🔍 53% Rerum Deus tenax vigor (Septem Dolorum)Rerum Deus tenax vigor (Septem Dolorum)
  14. 🔍 53% Jam lucis orto sidere (In tempore Passionis)Jam lucis orto sidere (In tempore Passionis)
  15. 🔍 53% Rerum Deus (In Tempore Passionis)Rerum Deus (In Tempore Passionis)
  16. 🔍 52% Dei fideDei fide
  17. 🔍 51% Rector potens (In Tempore Passionis)Rector potens (In Tempore Passionis)
  18. 🔍 51% Nunc sancte nobis Spiritus (Septem Dolorum)Nunc sancte nobis Spiritus (Septem Dolorum)
  19. 🔍 50% Ternis ter horisTernis ter horis
  20. 🔍 50% Nunc Sancte nobis (In Tempore Passionis)Nunc Sancte nobis (In Tempore Passionis)
  21. 🔍 49% Qua Christus hora sitiitQua Christus hora sitiit
  22. 🔍 47% Te lucis ante terminum (In tempore Passionis)Te lucis ante terminum (In tempore Passionis)
  23. 🔍 46% Rerum Deus tenax vigor (In tempore Passionis)Rerum Deus tenax vigor (In tempore Passionis)
  24. 🔍 46% Rector potens verax Deus (In tempore Passionis)Rector potens verax Deus (In tempore Passionis)
  25. 🔍 46% Te lucis ante terminum (Passiontide)Te lucis ante terminum (Passiontide)
  26. 🔍 45% Te lucis ante terminum (Temp. Passionis)Te lucis ante terminum (Temp. Passionis)
  27. 🔍 44% Verbum supernum prodiens aVerbum supernum prodiens a
  28. 🔍 43% O lux beata CaelitumO lux beata Caelitum
  29. 🔍 43% O lux beata CaelitumO lux beata Caelitum
  30. 🔍 43% Nunc Sancte nobis (In Tempore Passionis)Nunc Sancte nobis (In Tempore Passionis)
  31. 🔍 43% Nunc Sancte nobis Spiritus (Temp. Passionis)Nunc Sancte nobis Spiritus (Temp. Passionis)
  32. 🔍 42% O lux beata CaelitumO lux beata Caelitum
  33. 🔍 42% O lux beata CaelitumO lux beata Caelitum
  34. 🔍 42% O lux beata CaelitumO lux beata Caelitum
  35. 🔍 42% Verbum supernum prodiens a Verbum supernum prodiens a
  36. 🔍 42% Jam lucis orto sidere (Septem Dolorum)Jam lucis orto sidere (Septem Dolorum)
  37. 🔍 41% Deus tuorum militumDeus tuorum militum
  38. 🔍 41% Deus tuorum militumDeus tuorum militum
  39. 🔍 41% Deus tuorum militumDeus tuorum militum
  40. 🔍 41% Veni Redemptor gentiumVeni Redemptor gentium
  41. 🔍 41% O gente felix hospitaO gente felix hospita
  42. 🔍 41% Rerum Deus (In Adventu)Rerum Deus (In Adventu)
  43. 🔍 40% Jam lucis orto sidere (Tempore Adventus)Jam lucis orto sidere (Tempore Adventus)
  44. 🔍 40% Te lucis ante terminum (In Festo Septem Dolorum BMV)Te lucis ante terminum (In Festo Septem Dolorum BMV)
  45. 🔍 40% A solis ortusA solis ortus
  46. 🔍 40% Rector potens (In Adventu)Rector potens (In Adventu)
  47. 🔍 40% Rector potens (In Adventu)Rector potens (In Adventu)
  48. 🔍 39% Rex gloriose Martyrum (another chant)Rex gloriose Martyrum (another chant)
  49. 🔍 39% Praefatio solemnior de Ecclesiae DedicationePraefatio solemnior de Ecclesiae Dedicatione
  50. 🔍 39% Praefatio solemnior de Epiphania DominiPraefatio solemnior de Epiphania Domini
  51. 🔍 39% Nunc Sancte nobis (In Adventu)Nunc Sancte nobis (In Adventu)
  52. 🔍 39% Rex gloriose Martyrum (Alter tonus)Rex gloriose Martyrum (Alter tonus)
  53. 🔍 39% Praefatio solemnior de sacratissimo Corde IesuPraefatio solemnior de sacratissimo Corde Iesu
  54. 🔍 39% En ut superbaEn ut superba
  55. 🔍 39% Praefatio solemnior de D. N. Iesu Christo RegePraefatio solemnior de D. N. Iesu Christo Rege
  56. 🔍 39% Praefatio solemnior de AdventuPraefatio solemnior de Adventu
  57. 🔍 39% Praefatio solemnior de Ascensione DominiPraefatio solemnior de Ascensione Domini
  58. 🔍 38% Praefatio solemnior de sanctissima EucharistiaPraefatio solemnior de sanctissima Eucharistia
  59. 🔍 38% Jesu dulcis memoria!Jesu dulcis memoria!
  60. 🔍 38% Tibi Redemptor omniumTibi Redemptor omnium
  61. 🔍 38% Praefatio solemnior de S. BenedictoPraefatio solemnior de S. Benedicto
  62. 🔍 38% Praefatio solemnior de Nativitate DominiPraefatio solemnior de Nativitate Domini
  63. 🔍 38% Aeterne sol qui lumineAeterne sol qui lumine
  64. 🔍 38% Praefatio solemnior de sancto Joanne BaptistaPraefatio solemnior de sancto Joanne Baptista
  65. 🔍 38% Auctor beate saeculiAuctor beate saeculi