Willy Hess
Born: 12th October 1906, Winterthur, Switzerland
Died: 9th May 1997, winterthur, Switzer;and
Nationality: Swiss
Willy Hess was a Swiss musicologist, composer, and famous Beethoven scholar. He achieved fame after compiling and publishing a catalogue of works of Beethoven that were not listed in the "complete" edition. He orchestrated the Piano Concerto No. 0 (Beethoven), in E-flat from a piano score.
Read more at https://en.wikipedia.org/wiki/Willy_Hess_(composer)