That sounds a bit like parallel harmony. Debussy does a lot of that, just he adds 6ths and 7ths to the chords and then moves them up and down in parallel.
I am not sure what the specific name is. What you are really doing is prolonging the cadence. say you took C maj, D maj, and E maj. chords. C maj is tonic, D maj is V/V which would normally go to G maj, but instead you produced a secondary deceptive candence and went to E min. which would be vi in the key of G. (the key that was temporarily tonicized). Now when you got to the E instead of being minor, you made it of V/vi chord which should then lead you to a min, then d min, then c maj 6/4, G maj. 7 back to C maj root position. Try that progression it is a real nice sound. It keep the suspense up and elongates the melodies.boliver (have I mentioned how much I love theory?)
What??!??!?(did I tell you how I was rubbish at theory?)