By Chopin. This arrangement was taken from the International Library of Piano Music so it is the original advanced version of this passionate Chopin nocturne. Because of the complexity of this nocturne the lesson spans four CDs giving the student easily four hours of detailed instruction on how to play this piece. A full demonstration of the nocturne is provided followed by a detailed "by ear" lesson in two- to four-measure increments. Learning this piece has never been easier than this.