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Sanctuary Classics - - Specializing in contemporary Classical music.

Selene - - Polish label, with a focus on Polish composers and performers.

Sherman Records - - Audio and video content licensing including Libretto Classics series.

Somm Recordings - - Choral and instrumental music. Recordings of British conductor Sir Thomas Beecham. Online catalogue with MP3 samples.

Sonora Productions - - Specializes in Classical and Sacred music.

Sony Classical - - Classical, crossover, and soundtrack music label. Features sound clips, tour schedules, and upcoming releases.

Sotone - - Releases of French Horn performances.

Sound Dynamics Associates - - Recording and reissuing Classical music performances and recordings on CD.

Stieglitz - - (Classical Label of Pink Tontraeger) Rarities; online shopping. [German/English.

Stradivarius - - Independent Italian label devoted to presenting new and alternative classic music.

Supraphon - - A Czech company devoted to spread music of the genre by local artists. Features a catalogue composed by new recordings as well as digitally remastered re-editions of historic recordings.

Symposium Records - - Re-issues recordings from the late 19th & early 20th centuries.