Richard Georg Strauss was a leading German composer of the late Romantic and early modern eras. He is known for his operas, which include Der Rosenkavalier, Elektra, Die Frau ohne Schatten and Salome; his Lieder, especially his Four Last Songs; his tone poems, including Don Juan, Death and Transfiguration, Till Eulenspiegel's Merry Pranks, Also sprach Zarathustra, Ein Heldenleben, Symphonia Domestica, and An Alpine Symphony; and other instrumental works such as Metamorphosen and his Oboe Concerto.