With calm, silence, and devotion, one of the greatest masterpieces of the music of all times.
The great Christa Ludwig sings "Erbarme dich" from Bach's Matthaus Passion.


http://www.youtube.com/watch?v=x2XUaCWezRY

Also a beautiful version in Arab, sung by Fadia el-Hage, transposed in g minor.


http://www.youtube.com/watch?v=TErG0e-xh8A