adagio [It]—slow tempo, often implying a lyrical, poignant character
allegro—fast, lively tempo
andante—moderately slow tempo (e.g. walking). Faster than adagio but slower than allegretto
brio [I], con brio, brioso—vigor, vigorously, with fire
chamber music, Kammermusik [G], Musique de chambre [F], Musica da camera [I]—"Classical Music" for a small ensemble, generally 8 or fewer players with a canonical emphasis on 3-6 players
finale [I], final [F]—The final movement, sometimes explicitly titled thus
moderato [I], moderamente, modéré [F], modérément [F]—moderately, at a moderate tempo, applying a touch of restraint to its related word(s), e.g. allegro moderato
molto [It]—very much
piano quintet—ensemble (work) for string quartet plus piano. One of the most grand chamber music forms. For an extra rich sound, some piano quintets omit the 2nd violin and add a bass comprising the complete four-part string section of the orchestra.
poco, un poco—a little bit, e.g. "andante un poco moto" is andante with a little more motion than typical
quintet, quintette [F], quintett [G], quintetto [I]—an ensemble / work for 5 players, the typical examples being string quintet (with second viola or cello), piano quintet or woodwind quintet
romanza, romanze, romance—a title for a work or movement implying a rather personal, tender, sentimental or amorous tone. Typically, lyrical.
sentimento—With sentiment, feeling. May imply a nostalgic or sorrowful mood