The final movement of the last of his symphonies ends with a famous bassoon note, while that work's second movement is a "humoresque" scored for only nine instruments, including a piccolo and a pair of clarinets.  
The final movement of this man's fourth symphony features two timpanis at opposing ends of the orchestra playing against each other.  The final movement of the last of his symphonies ends with a famous bassoon note, while that work's second movement is a "humoresque" scored for only nine instruments, including a piccolo and a pair of clarinets.  The first of his symphonies begins with an "Allegro orgoglioso" movement in G minor before progressing to C major.  He wrote a notable wind quintet as well as such works as the music drama Aladdin and operas like Saul and David and Masquerade, though he is best known for a set of compositions which includes the "expansive," the "four temperaments," and the "inextinguishable."  FTP, name this Danish composer of six symphonies.
The final movement of this man's fourth symphony features two timpanis at opposing ends of the orchestra playing against each other.  
Carl Nielsen