I actually owned that LP.
He went on the wrong side of social justice when his son Rufus Wainwright the singer said "My father just could not accept my gayness and rejected me." Ain't it awful? One of Rufus' acts is to dress up like Judy Garland and sing her Carnegie Hall album on stage in drag. Yipes.
I remember him from MASH, and “Oh, Tokyo...They got some Sake and Sashimi and some clean sheets, oh Kimono, Kimono...”