Table of Usual Root Progressions Theory Things   William Wieland
adapted from Harmony by Walter Piston
FROM   OFTEN SOMETIMES LESS OFTEN
I IV or V vi ii or iii
ii V IV or vi I or iii
iii vi IV I, ii or V
IV V I or ii iii or vi
V I IV or vi ii or iii
vi ii or V iii or IV I
vii°6 I or iii