Stanley Jordan was originally trained in Classical Piano....and then became a self-taught JAZZ Guitarist, mastering the art of "hammering on" and pulling unusual harmonics....so BOTH of his hands are moving furiously up and down the Frets....must be SEEN to understand:
Bartok Concerto shows him playing Piano with one hand and Guitar with the other.....
"Hammering On", aka "Touch Technique" explained:
[Hanspeter Kruesi: Advanced Touch Techniques, note 2 fingers on Right Hand play Harmonics]
Keep watching that channel for more demos....
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More "hammering on" Touch Techniques can be seen watching last week's AGT's Guitar Whiz Marcin Patrzalek where he plays a blend of "New Age" [usually very precise] and Flamenco [usually very sloppy] Guitar styles....with frequent Harmonics thrown in for good measure. He's only 18-yo, so he should be quite a sensation a few years from now:
BTW: I suspect that he is using a "Slack Key" type Guitar Tuning....where certain strings are loosened so that without holding down any Frets, strumming generates a (usually) Major Chord, rather than garbanzo...
Although he has certainly mastered the "Touch" Technique, Stanley Jordan did NOT invent it:
FYI: In fol. video, Stanley Jordan talks about changing from Standard Guitar Tuning to "P4 Tuning" [Perfect Fourths, normally used with Bass Guitars], wherein you get the SAME Note when holding down the FIFTH Fret on the next smaller string, as you progress through all of the string pairs to tune the guitar. THAT means that the finger locations for any particular Chord are the SAME, whether played on the top 4 strings, the bottom 4 strings or the middle 4 strings. Stanley said he had trouble changing his "mind set" in-between songs and frequently had the "wrong" Guitar in hand. [PS: A Hawaiian Slack Key Guitarist typically plays half a dozen....or MORE different Guitar Tunings (some a closely held family secret)....just an accepted part of the gig....and BTW, most learning is mano a mano without Tablature, so everything is played from Finger Memory for an assumed Tuning Choice....so in live recordings there is always a lot of time for jokes as they retune in-between most songs]:
[P4 explanation begins at about 1:30]