Graham Nash and David Crosby Youtube
One of my favorite acoustic albums from singer song writers in the seventies was Wind on the Water by David Crosby and Graham Nash.
Graham Nash is the member of Crosby Stills Nash (and Young) who seems to have gotten the least attention over the years. This acoustic guitar Youtube is of David Crosby and Graham Nash performing together, singing beautiful harmonies. Other duets such as Batdorf and Rodney, Seals and Crofts, England Dan and John Ford Coley, and also Buskin and Batteau perfected the art of duets, so it’s nice to hear Crosby and Nash in that line up, without the other members. It shows what is achievable with a minimum of instruments.
This video is from 1970, it includes Song with No Words and Teach Your Children.