The quartet is named for the theme of the second movement , which Schubert took from a song he wrote in 1817 of the same title ; but the theme of death is palpable in all four movements of the quartet .
The quartet is named for the theme of the second movement , which Schubert took from a song he wrote in 1817 of the same title . 
 The theme of death is palpable in all four movements of the quartet .