Frédéric Chopin - Nocturne in E minor, Op. posth. 72 No. 1, WN 23

Bar 1: Introduction, first subject.
Bar 2–9: Theme A, in E minor.
Bar 10–17: Variation on theme A, beginning with octaves in the right hand.
Bar 18–22: Interlude
Bar 23–30: Theme B, in B major, consisting of a four bar phrase, repeated with variation, second subject.
Bar 31–38: Heavily ornamented variation on A, in E minor, first subject again.
Bar 39–46: Variation on theme A, beginning with octaves in the right hand.
Bar 47–54: Theme B, modulated to E major, second subject again.
Bar 55–57: Coda in E major. #通俗音樂