When the first of the two root position triads has a doubled root, keep the
voices with the common tones stationary and move the remaining voice by step.
This stepwise motion will be upward for roots a descending 3rd apart (Example
a) and downward for roots and ascending 3rd apart (Example b). See p. 97 for
more information.
Play Example
a (I-vi) | Play
Example b (I-iii)
Root Movements
|