I was curious about how to make this ( youtube ---- .com /watch?v=ipP9Aeb5XW0 and at :32 in this youtube ---- .com /watch?v=w5TvxVbUi6Y) synth sound/stab using Ableton's Operator synth (this is one of the few vst synths I have a fair grip on).
here is the viable link from the above discussion - note that the covertoperators link is dead and that this one http://www.thedx7.co.uk/sheet_dx7rhodes.gif should be avoided as it gets redirected along the way to a cybersquatter site.