The movement looks to me secondary - it's more like a dance movement and not
too much music control.
This might be a very personal take, but if movement is secondary in gestural control, why one uses gestural control at all?
I believe that effective and ancillary gestures are what reinforce our perception of an instrument as a musical tool, rather than a mere "device".
Imho many gestural controllers would benefit of a better focus on this aspect.
How would you play such melodic lines (like those jazz licks) - in time -
simply with gestural control?
Setting an array of preset chords, triggering them with multiple switches, deploying a timeline which holds the trigger until the onset of the next beat or quarter, etc...
I guess the list here could come up with many other methods.
I'm not saying that's trivial, I only think that it's not the "future" as it is presented in the video.
How would you improvise on scales, pattern or
harmonic structures? After all he's a jazz player calling his music "beat
jazz".
What do you call improvisation in this case?
How much is he improvising?
I can imagine he's "improvising" with the melodic lines, but playing samples and presets chords doesn't match my own definition of improvisation.
cheers,
M