Tchaikovsky: Symphony No. 6, 'Pathétique' - Cleveland Orchestra: George Szell conducting
Tchaikovsky said he wept while composing this, and died 9 days later. Cause of death is suspected to be suicide by drinking water infected with cholera. If that's true, it's a huge case of depression.
The music is dark and brooding, sometimes depressing and in some parts also very beautiful. I haven't heard George Szell conduct it, but he was one of the great conductors of the past for romantic era music so I suspect it'll be nice.