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% Per omnia saecula saeculorum (3. Tonus solemnior)

   
1. 🔍 92% Per omnia saecula saeculorum (1. Tonus solemnis)

   
2. 🔍 90% Toni Praefationum (3. Tonus solemnior)

   
3. 🔍 84% Per omnia saecula saeculorum (2. Tonus ferialis)

   
4. 🔍 80% Toni Praefationum (1. Tonus solemnis)

   
5. 🔍 73% Dominus vobiscum ... Sursum corda (B. tonus sollemnis)

   
6. 🔍 67% Dominus vobiscum ... Sursum corda (B. tonus sollemnis)

   
7. 🔍 67% Praefatio solemnior communis

   
8. 🔍 67% Dominus vobiscum

   
9. 🔍 67% Praefatio solemnior de Epiphania Domini

   
10. 🔍 66% Toni Praefationum (2. Tonus ferialis)

    
11. 🔍 66% Praefatio solemnior de Nativitate Domini

    
12. 🔍 65% Praefatio solemnior Paschalis

    
13. 🔍 65% Praefatio solemnior de Ascensione Domini

    
14. 🔍 65% Praefatio solemnior de Apostolis

    
15. 🔍 65% Praefatio solemnior de Spiritu Sancto

    
16. 🔍 64% Praefatio solemnior de Quadragesima

    
17. 🔍 64% Praefatio solemnior de Angelis

    
18. 🔍 64% Praefatio solemnis de Quadragesima

    
19. 🔍 64% Praefatio solemnis de Epiphania Domini

    
20. 🔍 64% Praefatio solemnis communis

    
21. 🔍 63% Praefatio ferialis de sacratissimo Corde Iesu

    
22. 🔍 63% Dominus vobiscum ... Sursum corda (A. tonus simplex)

    
23. 🔍 63% Praefatio solemnior de Adventu

    
24. 🔍 63% Praefatio solemnior de sacratissimo Corde Iesu

    
25. 🔍 63% Praefatio de Dominicis per annum IV

    
26. 🔍 63% Praefatio solemnior de beata Maria Virgine

    
27. 🔍 62% Praefatio solemnior de sancta Cruce

    
28. 🔍 61% Praefatio solemnior de Martyribus

    
29. 🔍 61% Praefatio solemnis de Nativitate Domini

    
30. 🔍 61% Praefatio solemnior de sanctissima Eucharistia

    
31. 🔍 61% Praefatio de Dominicis per annum II

    
32. 🔍 61% Praefatio solemnis de Ascensione Domini

    
33. 🔍 60% Praefatio solemnis paschalis

    
34. 🔍 60% Praefatio solemnior de Omnibus Sanctis et Patronis

    
35. 🔍 60% Praefatio solemnis de Spiritu Sancto

    
36. 🔍 60% Praefatio solemnior de sancto Ioseph Sponso B. M. V.

    
37. 🔍 60% Praefatio solemnior de sancto Ioanne Baptista

    
38. 🔍 60% Per omnia ... Pax Domini

    
39. 🔍 59% Praefatio de D. N. Iesu Christo universorum Rege

    
40. 🔍 59% Praefatio solemnior de D. N. Iesu Christo Rege

    
41. 🔍 59% Praefatio Paschalis II

    
42. 🔍 59% Praefatio solemnior de S. Benedicto

    
43. 🔍 58% Praefatio solemnis de Apostolis

    
44. 🔍 58% Praefatio solemnior de sanctissima Trinitate

    
45. 🔍 58% Praefatio de Dominica Passionis. Dominica in Palmis

    
46. 🔍 58% Dominus vobiscum ... Sursum corda (A. tonus simplex)

    
47. 🔍 58% Praefatio solemnior de nuptiis

    
48. 🔍 57% Dominus vobiscum

    
49. 🔍 57% Prex Eucharistica IV

    
50. 🔍 57% Praefatio solemnis de Angelis

    
51. 🔍 57% Praefatio de Dominicis per annum V

    
52. 🔍 57% Ad Praefationem in tono solemni

    
53. 🔍 57% Praefatio solemnior de sancto Joanne Baptista

    
54. 🔍 57% Praefatio solemnis de sanctissima Eucharistia

    
55. 🔍 57% Praefatio solemnis de sacratissimo Corde Iesu

    
56. 🔍 57% Praefatio solemnis de sancta Cruce

    
57. 🔍 56% Praefatio solemnis de Adventu

    
58. 🔍 56% Praefatio solemnis de Martyribus

    
59. 🔍 56% Praefatio de sollemnitate omnium sanctorum

    
60. 🔍 56% Praefatio solemnis de beata Maria Virgine

    
61. 🔍 56% Praefatio solemnior de Ecclesiae Dedicatione

    
62. 🔍 56% Praefatio solemnis de Martyribus

    
63. 🔍 56% Praefatio in Annuntiatione Domini die 25 martii

    
64. 🔍 55% Praefatio solemnis de sanctissima Trinitate