Complex sentence: Ernst Roth (1 June 1896--17 July 1971) was a music publisher for Universal Edition in Vienna and Boosey & Hawkes in London, from 1968 as the company's director.
Split into simpler sentences: Ernst Roth (1 June 1896--17 July 1971) was a music publisher in Austria and the United Kingdom. He worked for Universal Edition in Vienna and Boosey & Hawkes in London, from 1968 as the company's director.