With the project "The Duplex Coupler Grand Piano" Florian Uhlig and David Stromberg breathe new life into a forgotten idea. The composer Emanuel Moór, whose works combine wonderful melodies and surprising harmonic twists, developed the "Duplex Coupler Piano" with a double keyboard. The coupled, octavated notes help the works achieve special shades of sound. In the recording of the cello sonatas by Moor, Richard Strauss and Ernst von Dohnanyi by David Stromberg and Florian Uhlig, this unique instrument now comes into focus.