definitions for each

character piece
chromaticism
piano trio

Character piece:

A character piece is a short musical composition for a solo instrument, often piano, that seeks to convey a particular mood, emotion, or character. These works often possess distinctive musical traits that capture the essence of a specific mood or personality, allowing the performer to showcase their interpretive skills and bring out the expressive qualities of the music.

Chromaticism:
Chromaticism refers to the use of notes outside of the diatonic scale in a musical composition. It involves the inclusion of chromatic (half-step) pitches, which are used to add tension, color, and variety to the music. Chromatic passages or chromaticism can be found in various forms in different musical styles, ranging from classical music to jazz and contemporary music.

Piano trio:
A piano trio is a musical ensemble consisting of a piano, a violin, and a cello. It is a popular chamber music configuration that allows for a rich blend of different timbres and musical textures. The piano typically plays a central role, providing both harmonic support and melodic material, while the violin and cello complement each other, contributing to the overall musical conversation and interplay within the ensemble. Piano trios can range from classical compositions by composers such as Beethoven and Brahms to contemporary and jazz-infused works.