Claire De Lune
DeBussy. Impressionistic piano solo. Not very dissonant nor rhythmically odd like later stuff (ie, Stravinsky, Schoenberg, Bartok), but more "jazz voicing" than earlier Romantic (ie, Beethoven, Chopin) period.
Stravinsky. "Modern" classical, the last viable period before "popular" music took over. Things are getting rather dissonant by now.
Guitar piece. Example of classical nylon string playing.
Bach. 4th of the 2-part Inventions (piano solo). Baroque style with lots of counterpoint.