Cadenza: unaccompanied section of virtuoso display for the soloist in a concerto, usually appearing near the end of the first movement, sometimes in the last.
Chamber Music: Music using a small group of musicians, with one player to a part.
Coda: In a sonata form movement, a concluding section following the recapitulation and rounding off the movement by repeating themes or developing them further.
Concerto: Extended composition for instrumental soloist and small orchestra; common in late baroque music.
Development: 2nd section of a sonata form movement, in which themes from the exposition are developed and the music moves through several keys.
Exposition: First section of a sonata form movement, which sets up a strong conflict between the tonic key and the new key; and between the first tone and the second.
Minuet and Trio: Compositional form derived from a dance, in 3 parts minuet (A), trio (B), minuet (A). Often used as a 3rd movement of classical symphonies, string quartets, and other works, it is in triple meter (3/4 time) and usually in a moderate tempo.
Piano Trio: Piano plus strings (1+2 strings)
Recapitulation: 3rd section of a sonata form movement, in which the 1st theme, bridge, second theme, and concluding section are presented more or less as they were in the exposition, with one crucial difference: All the principal material is now in the tonic key.
Rondo: Compositional form featuring a main theme (A) that returns several times in alternation with other themes, such as ABACA and ABACABA. Rondo is often the form of the last movement in classical symphonies, string quartets, and sonatas.
Scherzo: Compositional form in 3 pars (ABA), sometimes used as the 3rd movements in classical and romantic symphonies, string quartets, and other works. A scherzo is usually in triple meter,