In this exercise, we move through the diatonic triads of Ab major and we preceed every triad
with its dominant:
Eb/G* (V6 -> first inversion)
*We have substituted the G dim triad for Eb/G.
G dim has a dominant function and since we can't resolve to a dim chord (it's not a stable chord
because of the diminished fifth) we replace it with the dominant chord of the key -> Eb
The pattern is based on a passage from Paganini's 5th Caprice.
The diatonic triads are in root position and the secondary dominant are inverted for a smooth bassline.
The patterns for the dominants are:
Ascending: 3 - 1 - b7
Descending: 5 - 3 - b7
Go slow when playing this and really think about the notes and about the chord functions.
Grab the pdf over at Edge Effect Training.