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.

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 tenax vigor (In Major. Festis)

   
1. 🔍 95% Rerum Deus (In Solemnitatibus)

   
2. 🔍 84% Rerum, Deus, tenax

   
3. 🔍 78% Rerum Deus (in Solemnitatibus)

   
4. 🔍 76% Rerum Deus (In Solemnitatibus)

   
5. 🔍 70% Rerum Deus tenax vigor (In Quadragesima)

   
6. 🔍 68% Rector potens verax Deus (In Major. Festis)

   
7. 🔍 67% Rerum Deus (In Tempore Paschali)

   
8. 🔍 67% Nunc Sancte nobis Spiritus (In Major. Festis)

   
9. 🔍 66% Rerum Deus tenax vigor (In Fer. et Fest. Simpl.)

   
10. 🔍 65% Rector potens (In Festis majoribus)

    
11. 🔍 65% Rerum Deus tenax vigor

    
12. 🔍 65% Rerum Deus tenax vigor

    
13. 🔍 65% Jam lucis orto sidere (In Major. Festis)

    
14. 🔍 64% Rerum Deus tenax vigor (In Festis)

    
15. 🔍 63% Rerum Deus tenax vigor (In tempore Passionis)

    
16. 🔍 63% Jam lucis orto sidere (Solemn feasts)

    
17. 🔍 60% Rerum Deus (In Festis Majoribus)

    
18. 🔍 59% Rerum Deus (In Adventu)

    
19. 🔍 59% Rerum Deus tenax vigor (In Dom. et Minor. Festis)

    
20. 🔍 58% Rector potens (soll.)

    
21. 🔍 58% Rector potens (in Solemnitatibus)

    
22. 🔍 58% Jam lucis orto sidere (Solemnitatibus)

    
23. 🔍 58% Rerum Deus (In Dominicis per Annum)

    
24. 🔍 57% Nunc Sancte nobis (In Solemnitatibus)

    
25. 🔍 56% Rerum Deus (In Tempore Passionis)

    
26. 🔍 54% Rerum Deus (In Feriis per Annum)

    
27. 🔍 54% Christo profusum sanguinem

    
28. 🔍 54% Rerum Deus tenax vigor (Septem Dolorum)

    
29. 🔍 53% Rerum Deus (In Dominicis per Annum)

    
30. 🔍 53% Rerum Deus (In Nativitate Domini)

    
31. 🔍 53% Rerum Deus tenax vigor (tempus nativitas)

    
32. 🔍 52% Rerum deus tenax vigor (In Pentecoste)

    
33. 🔍 52% Rerum Deus (In Adventu)

    
34. 🔍 52% Rerum Deus (In Adventu)

    
35. 🔍 52% Rerum Deus tenax (dom.)

    
36. 🔍 50% Rerum Deus tenax vigor (In Pentecoste)

    
37. 🔍 50% Rerum Deus tenax vigor (In Feriis per annum)

    
38. 🔍 50% Rerum Deus (In Epiphania Domini)

    
39. 🔍 50% Rerum Deus tenax vigor (Tempore Epiphaniae)

    
40. 🔍 49% Rerum Deus tenax vigor (In tempore Paschali)

    
41. 🔍 49% Rerum Deus tenax vigor (in memoriis)

    
42. 🔍 49% Rerum deus tenax vigor (In Festo S. Cordis Jesu)

    
43. 🔍 47% Rerum Deus (In Festis Minoribus)

    
44. 🔍 47% Rerum Deus (In Quadragesima)

    
45. 🔍 46% Rerum Deus (in Festo Septem Dolorum BMV)

    
46. 🔍 46% Rerum Deus (Dom. per Annum)

    
47. 🔍 45% Te lucis ante terminum (In Major. Festis per Annum)

    
48. 🔍 45% Rerum Deus tenax (Adv.)

    
49. 🔍 44% Rerum Deus tenax vigor (Tempore Nativitatis)

    
50. 🔍 43% Lucis Creator optime

    
51. 🔍 43% Lucis creator

    
52. 🔍 42% Lucis Creator optime (in Aestate)

    
53. 🔍 42% Rerum deus tenax vigor (In Ascensione)

    
54. 🔍 42% Te lucis ante terminum (In Solemnitatibus)

    
55. 🔍 41% Rerum Deus (In Tempore Paschali)

    
56. 🔍 41% Lucis Creator optime

    
57. 🔍 41% Lucis creator

    
58. 🔍 41% Rerum Deus (In Tempore Ascensionis)

    
59. 🔍 41% Lucis Creator optime

    
60. 🔍 41% Rerum Deus (2)

    
61. 🔍 41% Rerum Deus (BVM)

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

    
63. 🔍 40% Te lucis ante terminum (In Adventu)

    
64. 🔍 40% Rerum Deus tenax vigor (In Transfiguratione)