I am learning Chopin's Prelude No. 15 in D flat Major, and I was curious as to why the Db F notes in the bass are written in the lower stave in the first bar but then the upper stave in the second bar. What is the purpose/implication of this?
Also am I right in assuming that in the second bar, the Db and F notes are joined to the bass notes (instead of the Db) to indicate that it is to be played with the left hand? Or does it imply something else?
Edit: Is this not a contradiction, since the chord at the start of the third bar is impossible to play with one (normal-sized) hand: