Walter Klien has been played on NTS shows including Slime w/ Little, with Piano Concerto No. 23 In A Major, K. 488 first played on 4 March 2019.

Walter Klien (November 27, 1928 - February 10, 1991) was an Austrian pianist.

Klien was born in Graz. His mother was the artist Erika Giovanna Klien (1900-1957). She emigrated to the United States in 1929, and their only further contact was by correspondence.

Klien studied piano with Josef Dichler at the Music Academy in Vienna and with Arturo Benedetti Michelangeli. He also studied composition with Paul Hindemith.

He was a laureate of the Busoni Competition in Bolzano and the Marguerite…