Johann Heinrich Samuel "Marcel" Sulzberger (24 December 1876–1941) was a Swiss composer, pianist, and music author.
[1] There are few certain dates concerning his life, since Sulzberger himself contributed to keeping some facts unclear (for example, his birth year).
In 1900 he studied at the university and conservatory in Zürich, where he was in contact with Othmar Schoeck and Gabriel Fauré.
Sulzberger was a close friend and great admirer of Ferruccio Busoni, who had emigrated to Switzerland during the World War I.
He was one of the first Swiss composers who experimented with bitonal and tritonal music, rather than a single tonality.