Andre Geraissati, Insight (1985), plus more

Those who know the guitar will recognize at once the DADGAD reference as a special tuning of the strings.  Unfortunately unlike the case with Nick Drake these tunings are not as resonant or as wildly creative as one would have hoped.  It might be that the mental illness that afflicted Nick contributed, as it so often sadly does in the case of genius artists.  Anyhow, Geraissati's masterpiece is the 1985 album Insight.  The title track is just gorgeous:

It's slow to get started, very slow in fact, but once it gets going with the gentle acoustic guitar singing its plucked melody atop very delicately arranged and tasteful strings, it absolutely takes me to heaven.  As I always say, music is the closest thing we have to experiencing heaven in our painful real world lives.  In particular it's as good as the best of Araujo, posted extensively in the past here.

Despite the excitement brought on by this record, 3 more from him disappointed me (1979 D'Alma album, 1982 Entre Duas, 1988's DADGAD).  They are basic folk or new age and without much in the way of progressive composition.

From discogs

Brazilian guitarist and composer (b. 1951). He's played with many famous musicians as Egberto Gismonti, Eduardo Agni, Amilson Godoy, Rui Saleme...
In 1970 he founded "D'Alma" with Ulisses Rocha, Mozart Melo, Rui Saleme, Candido Penteado, and others.