How to play reggae guitar lesson part 1. I use few bars of Stir It Up by Bob Marley to demonstrate guitar rhythm and work in key of A. My Amp settings: Out of 10 my gain is set low to about 2, my Bass is about 3, my Mid is about 4 and my Treble is about 7. When I strike the strings I keep my wrist relaxed and don't hit too hard. http://www.mootmusic.co.uk