Below are 13 emotions and dispositions along with a work that I feel comes closest to epitomizing and capturing that particular emotion in piano music.
Schubert: Impromptu, Op. 90 No. 3
Chopin: Polonaise, Op. 44
Prokofiev: Piano Sonata, Op. 83, III. Precipitato
Chopin: Fantasie, Op. 49
I have actually only played four of these pieces, and only three of them in serious study. (Guess which ones if you want to.) Also share your opinions on pieces that exemplify these emotions if you wish!