My proposal (which I perhaps didn't make clear)is that by programmers writing a bit of code, and using existing hardware in GENOS you could get much more variation out of a solo right hand part in performance or recording guitar parts.
If you look at page 15 of Genos Data Manual (available to download at Yamaha), you will see that On MOST of guitar MEGA voices, there are 8 different sounds available to use. Above C5 you also have strum and fret noise..
Velocity 1 - 20 = open soft
Velocity 21 - 40 = open hard
Velocity 41 - 60 = slap
Velocity 61 - 75 = dead
Velocity 76 - 90= mute
Velocity 91 - 106 = hammer
Velocity 106 - 120 = slide
Velocity 121 - 127 = pick harmonics
Numbers between values listed above control volume of the sample. So if programmers wrote a simple piece of code that allowed a designated slider on Genos,
it would output CC values of 19, 39, 59, 74, 89, 105, 119, one would be able to play the loudest volume of each of those samples. It would allow one to effortless slide between articulations of the guitar sound, making for a much more realistic solo. The mega voices, in the styles generated parts are one of the shining example of why the Genos (and Tyros) sound so great.
Currently Electic Guitar parts that are available to play are only Art voice, which only change the brightness of note by velocity.
These feature could be added by writing a small amount of code into Genos OS.
I have played Mega voices for solo lead guitar work; it is impossible for me at least to get proper velocities. I then go into list editor of Logic Pro, and quantize different velocities to get a nice solo out of it. I often edit important notes one at a time, by moving velocity up/down on piano roll editor, to find a sample I like. The result is significantly an improvement. Through the multi-distortion DSP on it, and you're cooking.