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
continuo, basso continuo, b.c., figured bass, thorough bass, basse chifrée—During the Baroque Era, a term for an improvised (realized) instrumental accompaniment specified by a symbolic notation for chords and a written bass line (i.e. figured bass). A continuo "part" usually implies multiple (but typically unspecified) instruments, e.g. one for a strong bass line (e.g. cello) and another for chords (e.g. lute, keyboard, organ). A continuo part may be realized by keyboard alone, and sometimes played by a bass melody instrument alone (without harmonies). wiki
larghetto—slow, but a bit faster than largo
sonata, sonate, suonato—a complicated term. Originally, "sounded" rather than "sung" (sonar vs. cantar), e.g. 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. In general usage as a work title, it designates a multi-movement piece for solo or duo instruments with one of the instruments enjoying a feature role.
with thinking heart and feeling mind, I'll embody your muse, thy soul divine