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% Jam lucis orto sidere (Solemnitatibus)

   
1. 🔍 85% Jam lucis orto sidere (In Major. Festis)

   
2. 🔍 85% Jam lucis orto sidere (Solemn feasts)

   
3. 🔍 74% Rerum Deus (in Solemnitatibus)

   
4. 🔍 72% Rerum, Deus, tenax

   
5. 🔍 72% Rector potens (in Solemnitatibus)

   
6. 🔍 71% Rerum Deus (In Solemnitatibus)

   
7. 🔍 71% Christo profusum sanguinem

   
8. 🔍 70% Rector potens (soll.)

   
9. 🔍 70% Nunc Sancte nobis (In Solemnitatibus)

   
10. 🔍 61% Rerum Deus (In Solemnitatibus)

    
11. 🔍 60% Iam lucis orto sidere

    
12. 🔍 58% Rerum Deus tenax vigor (In Major. Festis)

    
13. 🔍 58% Nunc Sancte nobis Spiritus (In Major. Festis)

    
14. 🔍 58% Jam lucis orto sidere (In Tempore Passionis)

    
15. 🔍 58% Jam lucis orto sidere (In Epiphania Domini)

    
16. 🔍 57% Rector potens verax Deus (In Major. Festis)

    
17. 🔍 57% Rector potens (In Festis majoribus)

    
18. 🔍 54% Jam lucis orto sidere (In tempore Quadragesimae)

    
19. 🔍 54% Jam lucis orto sidere (Septem Dolorum)

    
20. 🔍 54% Jam Lucis Orto T.P.

    
21. 🔍 53% Jam lucis orto sidere (Feriis et Officiis Simplicibus per Annum)

    
22. 🔍 53% Jam lucis orto sidere (In tempore Passionis)

    
23. 🔍 49% Jam lucis orto sidere (Festis Majoribus)

    
24. 🔍 48% Rector potens(Solemnitatibus)

    
25. 🔍 47% Jam lucis orto sidere (ord. Sund.)

    
26. 🔍 46% Jam lucis orto sidere (In Tempore Ascensionis)

    
27. 🔍 46% Jam lucis orto sidere (In Dom. et Minor. Festis)

    
28. 🔍 46% Jam lucis orto sidere (In Feriis et Fest. Simpl.)

    
29. 🔍 46% Jam lucis orto sidere (In Tempore Paschali)

    
30. 🔍 46% Jam lucis orto sidere (In Quadragesima)

    
31. 🔍 45% Jam lucis orto sidere (Festis Minoribus per annum)

    
32. 🔍 45% Jam lucis orto sidere (In Adventu)

    
33. 🔍 45% Jam lucis orto sidere (Tempore Adventus)

    
34. 🔍 45% Jam lucis orto sidere (In Festo S. Cordis Jesu)

    
35. 🔍 44% Jam lucis orto sidere (Dominicis per Annum)

    
36. 🔍 44% Jam lucis orto sidere (In Pentecoste)

    
37. 🔍 44% Jam lucis orto sidere (Tempore Epiphaniae)

    
38. 🔍 42% Iam lucis orto sidere (solemnitatibus)

    
39. 🔍 42% Jam lucis orto sidere (In Festo S. Cordis Jesu)

    
40. 🔍 42% Jam lucis orto sidere (In Festo Pentecostes)

    
41. 🔍 41% O salutaris Hostia II

    
42. 🔍 41% Jam lucis orto sidere (in Nativitate Domini)

    
43. 🔍 40% Jam lucis orto sidere (In Festo Corporis Christi)

    
44. 🔍 40% Jam lucis orto sidere (In Pentecoste)

    
45. 🔍 39% Jam lucis orto sidere (In tempore Paschali)

    
46. 🔍 39% Jam lucis orto sidere (In Tempore Paschali)

    
47. 🔍 38% Ut Antonini gloriam

    
48. 🔍 37% Lucis Creator optime (in Aestate)

    
49. 🔍 37% Lucis creator

    
50. 🔍 37% Lucis Creator optime

    
51. 🔍 37% Jam lucis orto sidere (Tempore Nativitatis)

    
52. 🔍 35% Lucis creator

    
53. 🔍 35% Dicamus laudes Domino (A Sollemnitate Epiphaniae)

    
54. 🔍 35% Certum tenentes ordinem (A Sollemnitate Epiphaniae)

    
55. 🔍 34% Ternis horarum terminis (A Sollemnitate Epiphaniae)

    
56. 🔍 34% O lux beata Caelitum

    
57. 🔍 34% Exsultet caelum (I)

    
58. 🔍 34% Auctor beate saeculi

    
59. 🔍 33% Jam lucis orto sidere (In Ascensione)

    
60. 🔍 33% En ut superba

    
61. 🔍 33% Rerum Deus tenax vigor

    
62. 🔍 33% Rerum Deus tenax vigor

    
63. 🔍 33% O lux beata Caelitum

    
64. 🔍 33% Vir erat