Electric guitars are available that can be made to sound like Les Paul's, Stratocasters, Telecasters, Flying V's and many more, does that make them artificial?
No. A human has to pick them up and pluck the strings.
To answer the original question. Not knowingly, with the only possible exception being electronic dance music...every once in awhile I try and re-live my 90's rave days and there is no question in my mind AI could come up with catchy grooves that change seamlessly every 7 minutes, forever.