Assuming a start from zero, I'd want:

Bach: Brandenburg Concertos, the Well-Tempered Clavier (solo piano) and the Suites for Solo Cello (preferably Starker).
Beethoven: Symphonies No 5 & 9
Dvorak: Symphony No 9
Mozart: Night Music, Symphonies 38-41 and I like his Piano Sonatas, too, particularly 19 and 23.
Rimsky-Korsakov: Scheherazade
Vivaldi: Four Seasons