Great thread Helen, been reminded of some great pieces here that I've forgotten about.
More favorites:
Le Tombeau du Couperin by Ravel (especially the Orchestral version)
Afro-Cuban Lullaby by Leo Brouwer (Christopher Parkening's version is quite beautiful.)
Resphigi's Pines of Rome and Fountains of Rome.
Orchestral Dance Suite from West Side Story (Joshua Bell recently did a fine version for violin with Orchestra.)
The Julian Bream and John Williams Live album. Don't know if it's on CD but it contains some unbelievable duet playing of Spanish and Impressionist music.
Segovia in Central Park.
Mahler 4th
Mysterious Barricade by Couperin.
Concerto for Orchesta, Music for Strings,Percussion and Celesta,    Miraculous Mandarin Suite Bartok. and on and on.vl