This is a work of A. Khachaturian, one song from Ballet Music "Spartacus."  Someone say this is the most beautiful melody in 20th century.

Adagio of Spartacus and Phrygia

This  work is from Symphony " Harold in Italy" by H. Berlioz.  My favorite music.

Pilgrim March

This initial part of the work seems to be tragic, something sorrowful might happen I guess.

This work is composed by Rimsky-Korsakov.  It is famous on account of its Orientalism.

This work is from Symphony No.5 by G. Mahler. Once it was also a screen music.

This work is orchstra music from Samson et Delila by C. Saint-Saens.  Very much Oriental.

This work is No.13 of "Le carnaval des animaux."  Well known piece.

The famous opera "Carmen" by G. Bizet has also beautiful aria in mezzo-soprano.

A. Berg seemes to have liked vocal works.  This piece is not popular but has very beautiful melody.