Here are my favorite works for piano. Some are easier than others but they are all challenging and fun to play. I play most of these much slower than written.
Bach- Two Part Inventions Bartok- For Children, Books 1 and 2 Bartok- Romanian Folk Dances Bartok- Mikrokosmos Book 4 Beethoven- Sonata #8 in Cm Beethoven- both Op. 49 Sonatinas Brahms- Intermezzo in A, Op. 118 Chopin- most of the Mazurkas Chopin- the Opus 69 Waltzes Copland- The Story of Our Town (from “Our Town”) Copland- Down A Country Lane Debussy- Arabesque #1; Debussy- Doctor Gradus, from The Children's Corner Debussy- The Girl With The Flaxen Hair (Prelude #8) Gershwin- Prelude #2 in C# minor Grieg- Lyric Pieces Op. 12 and 38; Peer Gynt Suite Kabalevsky- Children's Album Kabalevsky- Sonatina (Op. 13 #1) MacDowell- To A Wild Rose (from Woodland Sketches) Persichetti- Parades Ravel- Forlane, from "Tombeau de Couperin" Ravel- Prelude in A minor; Ravel- The Wondrous Garden, from "Mother Goose" Satie- Gymnopedies No. 1 and 3 Scriabin- Prelude No. 10 in C#m Schumann- Traumerei (from Kinderscenen, Op. 15) Sibelius-Valse Triste Tschaikovsky- Album for the Young Tschaikovsky- The Seasons
Contemporary Composers Australia Suite, by Lauren Bernofsky (published by FJH) Moods and Impressions, by Ross Petot (published by Kjos)
Books The 20th Century, Intermediate Level (Hal Leonard) Music For Millions series; volumes 17 (red), 27 (blue), and 37 (orange) Thirty Two Sonatinas and Rondos For The Piano