V7-V-progressions © Nikos Drelas 1 1-b 1-s 1a2 2-b 2-s 2a3 3-b 3-s 3a4 4-b 4-s4a 5 5-b 5-s5a 6 6-b 6-s 6a7 7-b 7-s 7a8 8-b 8-s 8a9 9-b 9-s 9a10 10-b 10-s 10a