Noctave
The piece
Thirteen bars of chords in steady quarter notes, with no runs and no ornaments: this prelude fits on a single page. Chopin states a first phrase fortissimo, then a second one, piano, which he immediately repeats pianissimo like an echo, before a final held chord. The piece belongs to the 24 Preludes of Op. 28, which pass through every major and minor key; Rachmaninoff took it as the theme of his Variations on a Theme of Chopin, Op. 22.
The left hand mostly walks down in low octaves: 48 of its attacks are doubled at the octave. Your fingers cannot connect these chords, so the pedal has to: change it just after each new chord sounds, not at the same moment, and you will get neither a gap nor a blur. Bring out the top note, which carries the melody alone, and keep the dotted rhythm on the third beat unhurried. Finally, make the three dynamic levels clearly distinct: a full fortissimo that never turns harsh, a restrained piano, then a pianissimo in which every chord still sounds complete.