Answer:

gustav

Answer	Crossword Clue
GUSTAV	With 11D, "Songs of a Wayfarer" composer
GUSTAV	Composer Mahler
GUSTAV	Composer-conductor Mahler

GUSTAV	Mahler with nine complete symphonies
GUSTAV	Mahler or Klimt
GUSTAV	Destructive 2008 hurricane
GUSTAV	Austrian painter Klimt
GUSTAV	Composer Holst
GUSTAV	King of Sweden.
GUSTAV	Sweden's new king.
GUSTAV	Ruler in Stockholm.

GUSTAV	Painter Klimt
GUSTAV	Holst who composed "The Planets"
GUSTAV	Holst or Mahler
GUSTAV	Symphony writer Mahler
GUSTAV	Painter Klimt or composer Mahler
GUSTAV	One of six Swedish kings
GUSTAV	Music's Mahler
GUSTAV	Name shared by the composers Holst and Mahler