Like Ron Davies, how long have you got?
The set of Scarlatti harpsichord concerti transcribed for guitar played by John Williams
Mahler, esp the final movt of the 3rd symphony, (one of the most thrilling uplifting pieces of music ever IMNHO)
a LOt of Wagner
Overtures
Lohengrin
The Ring ( which I am lucky enough to have seen LIVE twice)

a LOt of Mozart esp
Eine Kleine Nachtmuzik, 2nd mvt
The Magic Flute
Cosi Fan Tutti
Figaro
Requiem
The Piano Sonata in F (because it formed the soundtrack for one of the (for me) most PERFECT musical experiences ever)
Donizetti, Lucia di Lammermuir( the Carreras/Cabelle recording,absolutely Ravishing music)
Handel, including Messiah
Hayden, The Seasons and Creation

Like Ron, I tend to have "Classicfm" radio on when I am at home,
my Mother was a great Opera buff, but leaned towards Puccini and Verdi
I am a throw back to her Father ,he preferred Wagner and Mozart and so do I,