Rondo = A form frequently used in symphonies and concertos for the final movement. It consists of a main section that alternates with a variety of contrasting sections(A-B-A-C-A etc.)
Rubato = robbed time - increasing and decreasing tempo in a passage
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Sautillé = skipped or hopped tones
Scale = The series of tones which form (a) any major or minor key or (b) the chromatic scale of successive semi-tonic steps
Scherzando = playfully, sportively
Scherzo = Literally (a joke). Usually the third movement of symphonies and quartets that was introduced by Beethoven to replace the minuet. The scherzo is followed by a gentler section called a trio, after which a scherzo is repeated. Its characteristics
are a rapid tempo in triple time, a vigorous rhythm, and humorous contrasts.
Sempre = always
Simile = in the same manner
Simplice = simply
Sonata form = The form in which the first movements (and sometimes others) of symphonies are usually cast. the sections are exposition, development, and recapitulation, the last sometimes followed by a coda.
The exposition si the introduction of musical ideas, which are then (developed) in the recapitulation, the exposition is repeated with modifications.
son filé = with a spun sound
Sostenuto = sustained, prolonged
Sotto voce = in a quiet subdued tone, subdued voice
Staccato = detached separated
Subito = suddenly, immediately
Symphonic poem = A type of 19th century symphonic piece in one movement, which is based upon an extra-musical idea, either poetic or descriptive.
Syncopation = A shift of rhythmic emphasis off the beat
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Tarantella = A Neapolitan dance in rapid triple time