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.

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.

0. 🔍 100% Rerum Deus (In Solemnitatibus)

   
1. 🔍 95% Rerum Deus tenax vigor (In Major. Festis)

   
2. 🔍 85% Rerum, Deus, tenax

   
3. 🔍 82% Rerum Deus (in Solemnitatibus)

   
4. 🔍 80% Rerum Deus (In Solemnitatibus)

   
5. 🔍 69% Rerum Deus (In Tempore Paschali)

   
6. 🔍 67% Rerum Deus tenax vigor (In Quadragesima)

   
7. 🔍 66% Rector potens verax Deus (In Major. Festis)

   
8. 🔍 66% Rector potens (In Festis majoribus)

   
9. 🔍 65% Nunc Sancte nobis Spiritus (In Major. Festis)

   
10. 🔍 64% Jam lucis orto sidere (Solemn feasts)

    
11. 🔍 64% Jam lucis orto sidere (In Major. Festis)

    
12. 🔍 63% Rerum Deus tenax vigor

    
13. 🔍 63% Rerum Deus tenax vigor

    
14. 🔍 63% Rerum Deus tenax vigor (In Fer. et Fest. Simpl.)

    
15. 🔍 61% Rector potens (in Solemnitatibus)

    
16. 🔍 61% Rerum Deus tenax vigor (In tempore Passionis)

    
17. 🔍 61% Rerum Deus (In Adventu)

    
18. 🔍 61% Jam lucis orto sidere (Solemnitatibus)

    
19. 🔍 60% Nunc Sancte nobis (In Solemnitatibus)

    
20. 🔍 60% Rerum Deus (In Festis Majoribus)

    
21. 🔍 60% Rerum Deus tenax vigor (In Festis)

    
22. 🔍 60% Rector potens (soll.)

    
23. 🔍 59% Rerum Deus (In Dominicis per Annum)

    
24. 🔍 57% Rerum Deus (In Tempore Passionis)

    
25. 🔍 55% Rerum Deus (In Feriis per Annum)

    
26. 🔍 55% Christo profusum sanguinem

    
27. 🔍 55% Rerum Deus (In Dominicis per Annum)

    
28. 🔍 55% Rerum Deus tenax vigor (In Dom. et Minor. Festis)

    
29. 🔍 54% Rerum Deus (In Nativitate Domini)

    
30. 🔍 54% Rerum Deus (In Adventu)

    
31. 🔍 54% Rerum Deus (In Adventu)

    
32. 🔍 51% Rerum Deus (In Epiphania Domini)

    
33. 🔍 51% Rerum Deus tenax vigor (Septem Dolorum)

    
34. 🔍 50% Rerum deus tenax vigor (In Pentecoste)

    
35. 🔍 49% Rerum Deus tenax vigor (tempus nativitas)

    
36. 🔍 48% Rerum Deus tenax (dom.)

    
37. 🔍 48% Rerum Deus (In Quadragesima)

    
38. 🔍 48% Rerum Deus (in Festo Septem Dolorum BMV)

    
39. 🔍 47% Rerum Deus tenax vigor (In Pentecoste)

    
40. 🔍 47% Rerum Deus (In Festis Minoribus)

    
41. 🔍 47% Rerum deus tenax vigor (In Festo S. Cordis Jesu)

    
42. 🔍 47% Rerum Deus tenax vigor (in memoriis)

    
43. 🔍 47% Rerum Deus (Dom. per Annum)

    
44. 🔍 47% Rerum Deus tenax vigor (Tempore Epiphaniae)

    
45. 🔍 46% Rerum Deus tenax vigor (In tempore Paschali)

    
46. 🔍 45% Te lucis ante terminum (In Solemnitatibus)

    
47. 🔍 44% Rerum Deus tenax (Adv.)

    
48. 🔍 44% Rerum Deus tenax vigor (In Feriis per annum)

    
49. 🔍 44% Lucis Creator optime

    
50. 🔍 44% Lucis creator

    
51. 🔍 44% Lucis Creator optime (in Aestate)

    
52. 🔍 43% Te lucis ante terminum (In Major. Festis per Annum)

    
53. 🔍 43% Rerum Deus (In Tempore Paschali)

    
54. 🔍 42% Lucis Creator optime

    
55. 🔍 42% Lucis creator

    
56. 🔍 42% Rerum Deus (In Tempore Ascensionis)

    
57. 🔍 42% Lucis Creator optime

    
58. 🔍 42% Rerum Deus (2)

    
59. 🔍 42% Rerum Deus (BVM)

    
60. 🔍 41% Te lucis ante terminum (In Adventu)

    
61. 🔍 41% Rerum Deus tenax vigor (Tempore Nativitatis)

    
62. 🔍 40% Rerum deus tenax vigor (In Ascensione)

    
63. 🔍 40% Rector Potens

    
64. 🔍 40% Rerum Deus (In Festo S. Cordis Jesu)