Just bought the new CD by Gregg Allman - Low Country Blues. I admire what his voice can do - always have. Same goes for Alison Krauss. Find her on U-tube with Jerry Douglas singing "Going to Carolina,"  or "Lucky Man." All the other band members and musicians above have the same traits - voices that are pure magic, and a style to match. No imitations. Pure originals. Ya can't touch this.  Just go listen to them, and make sure you have a good sound system.