I'm still practicing with this wonderful utility and my hands have not yet memorized enough to
perform. Therefore I will comment on the instructional vid only. Mark's instructions and
demonstrations are through, straightforward and filmed clearly. One of the most useful tutorials
I've watched since the start of home video. I'm going out on a limb here but, along the lines of the
Anti-Sales Pitch, Mark seemingly shares some results of his own jazz genius which the SSSytem
affords. I like how that sense of improv is conveyed.