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% Iam lucis orto sidere

   
1. 🔍 60% Diei luce reddita

   
2. 🔍 57% Jam lucis orto sidere (Tempore Adventus)

   
3. 🔍 57% Jam lucis orto sidere (In Epiphania Domini)

   
4. 🔍 51% Jam Lucis Orto T.P.

   
5. 🔍 49% Jam lucis orto sidere (Feriis et Officiis Simplicibus per Annum)

   
6. 🔍 47% Ecce iam noctis

   
7. 🔍 47% Jam lucis orto sidere (In tempore Quadragesimae)

   
8. 🔍 46% Jam lucis orto sidere (In Dom. et Minor. Festis)

   
9. 🔍 46% Jam lucis orto sidere (In Feriis et Fest. Simpl.)

   
10. 🔍 46% Jam lucis orto sidere (ord. Sund.)

    
11. 🔍 44% Jam lucis orto sidere (Septem Dolorum)

    
12. 🔍 43% Fulgentis auctor aetheris

    
13. 🔍 43% Splendor paternae gloriae (in Aestate)

    
14. 🔍 43% Aeterna caeli gloria (in Aestate)

    
15. 🔍 43% Aeterna caeli gloria (aestivalis)

    
16. 🔍 43% Verbum supernum prodiens a

    
17. 🔍 43% Splendor paternae gloriae

    
18. 🔍 42% Jam lucis orto sidere (In Tempore Ascensionis)

    
19. 🔍 42% Splendor paternae

    
20. 🔍 42% Aeterne rerum Conditor (Dox. Deo Patri)

    
21. 🔍 42% Aeterne lucis conditor

    
22. 🔍 41% Jam lucis orto sidere (In Tempore Paschali)

    
23. 🔍 41% Jam lucis orto sidere (In Adventu)

    
24. 🔍 41% Lucis Largitor

    
25. 🔍 41% Jam lucis orto sidere (Tempore Epiphaniae)

    
26. 🔍 41% Eterne rerum

    
27. 🔍 40% Deus qui caeli lumen es

    
28. 🔍 40% Verbum supernum prodiens a

    
29. 🔍 40% Nunc tempus

    
30. 🔍 40% Ales diei nuntius

    
31. 🔍 40% Aeterna caeli gloria

    
32. 🔍 40% Credo VI

    
33. 🔍 39% Jam lucis orto sidere (Dominicis per Annum)

    
34. 🔍 39% Adesto rerum conditor

    
35. 🔍 39% Jam lucis orto sidere (In Festo S. Cordis Jesu)

    
36. 🔍 39% Ales diei nuntius (aestivalis)

    
37. 🔍 39% Jam lucis orto sidere (in Nativitate Domini)

    
38. 🔍 39% Jam lucis orto sidere (In Festo Corporis Christi)

    
39. 🔍 38% Jam lucis orto sidere (In Tempore Passionis)

    
40. 🔍 38% Jam lucis orto sidere (In tempore Passionis)

    
41. 🔍 37% Jam lucis orto sidere (In Tempore Paschali)

    
42. 🔍 37% Rerum Deus (In Dominicis per Annum)

    
43. 🔍 37% Iam lucis orto sidere

    
44. 🔍 37% Ales diei nuntius

    
45. 🔍 37% Iam lucis orto sidere (solemnitatibus)

    
46. 🔍 37% Jam lucis orto sidere (In tempore Paschali)

    
47. 🔍 37% Lux ecce surgit (in Aestate)

    
48. 🔍 36% Sator princépsque témporum

    
49. 🔍 36% Vox clara ecce intonat

    
50. 🔍 36% Jam lucis orto sidere (In Quadragesima)

    
51. 🔍 36% Sanctorum meritis

    
52. 🔍 36% Nox et tenebrae (in Aestate)

    
53. 🔍 35% Jam lucis orto sidere (Festis Minoribus per annum)

    
54. 🔍 35% Jam lucis orto sidere (Festis Majoribus)

    
55. 🔍 35% Jam lucis orto sidere (In Major. Festis)

    
56. 🔍 35% Nunc Sancte nobis (in Dominicis per Annum)

    
57. 🔍 35% Jam lucis orto sidere (Solemn feasts)

    
58. 🔍 35% Jam lucis orto sidere (Tempore Nativitatis)

    
59. 🔍 35% Rector potens (In Dominicis per Annum)

    
60. 🔍 34% Jam lucis orto sidere (In Pentecoste)

    
61. 🔍 34% Nox et tenebrae

    
62. 🔍 34% Amoris sensus erige (tonus ad laudes cycl. II, ubi prima celebratur)

    
63. 🔍 33% Cor arca legem cóntinens

    
64. 🔍 33% Jam lucis orto sidere (In Pentecoste)