Scoot over and spend some time at the website of duo pianists Richard and John Contiguglia. Lately I've been listening alot to piano four-hands and duos. And some of the best is served up by these fine musicians. Of particular interest is their long association with Grainger's music, an association that started with a visit by Grainger to their hometown in Upstate New York.
You'll find a link on their site to an all-too brief excerpt from their handling of Percy Grainger's "Fantasy on Themes from Gershwin's Porgy and Bess".
All that and more here.