7 over 2

I think the most important quality of an improviser is the ability to play interesting rhythms. Today we are going to develop this ability by tackling a difficult rhythm, playing seven notes over two beats. The classic name for this formation is 8th note septuplets.
The original exercise is a three note scale sequence played 4 notes per beat (16th notes). Accent the notes at the start of the formation. When playing in 4 accent every fourth beat, in 7 every seventh. This will prove quite difficult, so I advise you to play along the gpx file until you hear the melodies unfolding.
Have fun with this one.

Link to gpx: http://sebastiangrosu.com/desk/7over2.gpx