Ok so firstly to my ear this just sounds like an SMF which is then using the internal synthesised sounds of the keyboard/arranger
In all honesty it doesn’t sound authentic
The bends on the guitar parts is obtained using the pitch bend wheel and unfortunately doesn’t sound authentic or natural like a guitarist would phrase it.
There doesn’t appear to be any difference in the sound regardless of the velocity of the sequenced notes, making me wonder if there’s any multi samples or round robin approach used at all.
I mean no disrespect with this reply,
if your happy to use these sounds that’s all that matters.