Guitar is so hard to emulate because there are so many different styles, and so many different guitar/amp combinations.
A gliss using a distortion guitar patch is a very amateur move (probably more like an unintended mistake) but for the most part, I thought he did pretty good.
He should listen to guitarists like Dave Gilmour (Pink Floyd) for some relatively simple (but extremely effective) guitar phrasing, and give the notes some breathing room.
Ian
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Yamaha Tyros4, Yamaha MS-60S Powered Monitors(2), Yamaha CS-01, Yamaha TQ-5, Yamaha PSR-S775.