Der Erlkonig," "Death and the Maiden," and "Gretchen at the Spinning Wheel."  
This man's operas The Devil's Palace of Desire and Fernando were flops. He composed the lied "Die Forelle," which became the basis for his popular Trout Quintet.  He wrote incidental music to the play Rosamunde in addition to the Little C Major symphony.  Like Mahler, he did a Tragic symphony, and this composer's lieder include "Der Erlkonig," "Death and the Maiden," and "Gretchen at the Spinning Wheel."  For 10 points, name this composer whose work was catalogued by Otto Deutsch, the composer of the Unfinished Eighth symphony.
This man's operas The Devil's Palace of Desire and Fernando were flops.
Franz Peter {Schubert}