Romantic pieces to balance out a program

[wwalrus]

Hey guys,

I'm currently playing Grieg's piano concerto and the Appasionata sonata, and played Grande Polonaise (Chopin) about a month earlier, to give you a frame of reference of where I'm at as a pianist.

My next program is going to include Mendelssohn concerto #1, Prokofiev Sonata #8 mvt 3, and Ravel Jeux D'eau, but I feel like I could use something romantic (Brahms or Chopin) to balance it out. I don't want to play something that would be upwards of 20 pages, but between 15-20 would be nice. I want to play something by Brahms, as I've never played anything by him, and I want it to be near the difficulty of the other pieces in my program. Do you guys have any suggestions as to what would be a good piece? Thanks, in advance.