Michael Hedges and Nils Lofgren are excellent choices that offer great sound/performance quality. Another "audiophile" recording that wasn't mentioned is "Friday Night in San Francisco"-DeLucia/DiMeola and McLaughlin. On the mellow side Laurindo Almeida and Charlie Byrd mix classical with jazz. You can't go wrong with any of these recordings especially on the Concord label. Since you mentioned vocals Almeida with Sammy Davis Jr. is excellent in performance and sound quality. It has become a favorite "chill out" recording of mine.
I would love some suggestions on great acoustic...
guitar recordings. I am talking about both solo acoustic and possibly voice added. I like flowing and melodic and am less inclined to listen to aggressive styles. Thanks much.