Sad, nostalgic, melancholic composition writen by Bach and transcribed by Siloti for piano.Originaly called as Prelude in E minor BWV 855a.
巴赫写的悲伤，怀旧，忧郁的作品，由西洛蒂为钢琴转录。最初被称为 E 小调 BWV 855a 的前奏曲。