Dmitri Shostakovich (1906-1975):
24 Preludes and Fugues, Op. 87 (José Oscar de Almeida Marques), Nos. 13-24 (24 files, 2 files in each key):
14. e-flat minor
15. D-flat Major
16. b-flat minor
17. A-flat Major
18. f minor
19. E-Flat Major
20. c minor
21. B-Major
22. g minor
23. in F Major
24. in d minor