Robert Schumann (1810-1856) was a German composer and music critic. During the early part of his career, he composed exclusively for the piano. Later, he wrote pieces for both piano and orchestra, including many Lieder (songs for voice and piano), an opera, and four symphonies.
Schumann experienced several periods of mental illness and spent the last two years of his life in a mental institution in Bonn.
Scherzo is the Italian for joke. It is the name given to any lively, playful piece of music, as well as to the third movement in a four movement work.