One piano concerto in this key contains a fourth movement marked "allegro marziale animato" andopens with a theme to which the composer supposedly set the words "None of you understand this,haha!"Another work in this key was 
One piano concerto in this key contains a fourth movement marked "allegro marziale animato" andopens with a theme to which the composer supposedly set the words "None of you understand this,haha!"Another work in this key was written for the developer of the keyed trumpet, AntonWeidinger. A tone poem in this key uses a four note tuba leitmotif to depict the critic Eduard Hanslickand describes the title character's "Battlefield," "Works of Peace," and "Withdrawal From the World."It is the key of Liszt's first piano concerto, Haydn's (*) trumpet concerto, and Strauss's A Hero's Life. Asymphony in this key contains a notable second-movement funeral march in rondo form in this key'srelative minor. That work in this key was originally dedicated to Napoleon and is Beethoven's Eroicasymphony. For 10 points, name this major key, whose relative minor is C minor, and which is the majorkey with 3 flats.
One piano concerto in this key contains a fourth movement marked "allegro marziale animato" andopens with a theme to which the composer supposedly set the words "None of you understand this,haha!"Another work in this key was written for the developer of the keyed trumpet, AntonWeidinger.
E-flat major [do not accept or prompt on anything else]