I'm not sure if these are strictly 'classical' (compared to romantic, baroque etc), but they're old and they're instrumental

Rachmaniov (sp? xD I can't name any songs, just look him up on y outube))
Tchesnekoff - Salvation is Created
Saint-Saens - Danse Macabre
farandole by Bizet might be too happy, but investigate into his other works (Carmen) to make sure.