'''Scherzo No. 1 in B minor, Op. 20''', which is Chopin's first scherzo, is a composition for solo piano written by Frédéric Chopin between 1831 and 1832 and dedicated to Thomas Albrecht. The tempo marking is ''Presto con fuoco''. The piece is dark, dramatic, and lively. It's also very complicated and one of Chopin's more difficult works.