Woldemar Bargiel was a German composer. Bargiel was the half brother of Clara Schumann. (…) Besides teaching and composing, Bargiel served with Brahms as co-editor of the complete editions of Schumann's and Chopin's works. While Bargiel did not write a lot of music, most of what he composed was well thought out and shows solid musical craftsmanship. His chamber music—he wrote four string quartets, a string octet and three piano trios—represents an important part of his output.