Two Arabesques
The two arabesques are given these tempo marks: 
# "Andantino con moto"
# "Allegretto scherzando" This arabesque is in the key of E major. The piece begins with parallelism of triads in first inversion, a composition technique very much used by Debussy and other Impressionists which traces back to the tradition of fauxbourdon. It leads into a larger section which begins with a left hand arpeggio in E major and a descending right hand E major pentatonic progression. The second quieter B section is in A major, starting with a gesture (E-D-E-C), briefly passing through E major, returning to A major and ending with a bold pronouncement of the E-D-E-C gesture, but transposed to the key of C major and played forte. In the middle of the recapitulation of the A section, the music moves to a higher register and descends, followed by a large pentatonic scale ascending and descending, and resolving back to E major. The second arabesque in G major is noticeably quicker and more lively in tempo. It opens with left hand chords and right hand trills. The piece makes several transpositions and explores a lower register of the piano. Again notable is a hint of the pentatonic scale. It closes in a similar fashion to the first arabesque. The style more closely resembles some of Debussy's later works. The first piece was used as the theme to "Star Gazers". It is also featured in the 2001 Japanese film "All About Lily Chou-Chou" along with other works from Debussy.
The arabesques
Although quite an early work, the arabesques contain hints of Debussy's developing musical style.