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% Jam lucis orto sidere (Solemn feasts)

   
1. 🔍 97% Jam lucis orto sidere (In Major. Festis)

   
2. 🔍 85% Jam lucis orto sidere (Solemnitatibus)

   
3. 🔍 68% Iam lucis orto sidere

   
4. 🔍 64% Rerum Deus (In Solemnitatibus)

   
5. 🔍 64% Jam Lucis Orto T.P.

   
6. 🔍 64% Jam lucis orto sidere (In tempore Quadragesimae)

   
7. 🔍 64% Jam lucis orto sidere (ord. Sund.)

   
8. 🔍 63% Jam lucis orto sidere (Septem Dolorum)

   
9. 🔍 63% Rerum Deus tenax vigor (In Major. Festis)

   
10. 🔍 62% Nunc Sancte nobis Spiritus (In Major. Festis)

    
11. 🔍 61% Jam lucis orto sidere (Tempore Adventus)

    
12. 🔍 61% Rerum, Deus, tenax

    
13. 🔍 61% Rector potens (In Festis majoribus)

    
14. 🔍 61% Rector potens verax Deus (In Major. Festis)

    
15. 🔍 61% Jam lucis orto sidere (In Dom. et Minor. Festis)

    
16. 🔍 60% Rerum Deus (in Solemnitatibus)

    
17. 🔍 60% Jam lucis orto sidere (In Feriis et Fest. Simpl.)

    
18. 🔍 59% Rerum Deus (In Solemnitatibus)

    
19. 🔍 58% Rector potens (soll.)

    
20. 🔍 58% Christo profusum sanguinem

    
21. 🔍 58% Rector potens (in Solemnitatibus)

    
22. 🔍 58% Jam lucis orto sidere (In tempore Passionis)

    
23. 🔍 58% Nunc Sancte nobis (In Solemnitatibus)

    
24. 🔍 57% Jam lucis orto sidere (In Tempore Passionis)

    
25. 🔍 56% Jam lucis orto sidere (Festis Majoribus)

    
26. 🔍 55% Jam lucis orto sidere (In Adventu)

    
27. 🔍 55% Jam lucis orto sidere (In Epiphania Domini)

    
28. 🔍 54% Jam lucis orto sidere (Feriis et Officiis Simplicibus per Annum)

    
29. 🔍 53% Jam lucis orto sidere (Tempore Epiphaniae)

    
30. 🔍 51% Jam lucis orto sidere (In Pentecoste)

    
31. 🔍 49% Jam lucis orto sidere (In Pentecoste)

    
32. 🔍 48% Jam lucis orto sidere (In Tempore Paschali)

    
33. 🔍 48% Iam lucis orto sidere (solemnitatibus)

    
34. 🔍 48% Jam lucis orto sidere (In Festo S. Cordis Jesu)

    
35. 🔍 47% Jam lucis orto sidere (In tempore Paschali)

    
36. 🔍 46% Jam lucis orto sidere (In Tempore Ascensionis)

    
37. 🔍 46% Jam lucis orto sidere (Tempore Nativitatis)

    
38. 🔍 46% Jam lucis orto sidere (In Quadragesima)

    
39. 🔍 45% Jam lucis orto sidere (Festis Minoribus per annum)

    
40. 🔍 45% Lucis creator

    
41. 🔍 45% Jam lucis orto sidere (In Tempore Paschali)

    
42. 🔍 44% Lucis Creator optime (in Aestate)

    
43. 🔍 44% Lucis Creator optime

    
44. 🔍 43% Lucis creator

    
45. 🔍 43% Jam lucis orto sidere (Dominicis per Annum)

    
46. 🔍 43% Jam lucis orto sidere (In Festo S. Cordis Jesu)

    
47. 🔍 41% Jam lucis orto sidere (In Festo Pentecostes)

    
48. 🔍 40% Jam lucis orto sidere (in Nativitate Domini)

    
49. 🔍 40% Jam lucis orto sidere (In Festo Corporis Christi)

    
50. 🔍 39% Ut Antonini gloriam

    
51. 🔍 39% Jam lucis orto sidere

    
52. 🔍 38% Jam lucis orto sidere (In Ascensione)

    
53. 🔍 38% Lucis Creator optime

    
54. 🔍 38% Lucis Creator optime

    
55. 🔍 38% Audi benigne Conditor

    
56. 🔍 38% Beata nobis

    
57. 🔍 38% O lux beata Caelitum

    
58. 🔍 38% O lux beata Caelitum

    
59. 🔍 38% Audi benigne

    
60. 🔍 37% Exsultet jam Angelica

    
61. 🔍 37% O lux beata Caelitum

    
62. 🔍 37% Rector potens(Solemnitatibus)

    
63. 🔍 37% Deus creator omnium

    
64. 🔍 37% Jam lucis orto sidere (In Ascensione)