chamber music, Kammermusik [G], musique de chambre [F], musica da camera [I], musica cameralis [L]—"Classical Music" for a small ensemble, generally 8 or fewer players with a canonical emphasis on 3-6 players. explore
oboe quartet—ensemble/work for oboe and strings, typically the traditional string trio comprising violin, viola, and cello. Note, "oboe quartet" might also refer to a quartet of oboes, but the frequency of this quartet for oboe and strings warrants the traditional name. Explore the oboe quartet | wiki
quartet, quatuor [F], quartett [G], quartetto [I], cuarteto [S]—ensemble or work for four players the most important examples being the string quartet and the piano quartet
sonata [I], sonate [pl], suonato—Originally, "sounded" rather than "sung" (sonar vs. cantar), i.e. instrumental music. According to historical period, sonata began to imply a formal plan of movements as well as the structure within a single movement, e.g. "sonata form" and applies to instrumental sonatas, string quartets, symphonies, etc., all examples of the sonata principle. In general usage as a specific work title (e.g. violin sonata), it designates a multi-movement piece for solo or duo instruments with one of the instruments enjoying a feature role. wiki