"The quick trout and the rose in the heather"
Rainbow trout
Public DomainRainbow trout - Credit: Wikimedia Commons

Franz Schubert (1797-1828) wrote a lied, or song, called Die Forelle (The Trout) in 1817, using lyrics from a poem by Christian Friedrich Daniel Schubart (1739-1791).  In 1846, Franz Liszt (1811-1886) transcribed it for piano.  

The lyrics are spoken as if by an observer watching a trout darting in a river.  A nearby fisherman is also watching the fish as it swims close to his hook, but too quickly to be caught.  The fisherman stirs up the waters and the trout, confused by the sudden muddiness, is caught.  The original poem compares the trout's fate to that of young women who flirt with danger and lack the wisdom to flee from it.

Heidenroslein (Heather Rose) is a poem by Johann Wolfgang von Goethe, arguably German's most famous poet.  It tells of a boy seeing a rose growing among the heather; he threatens to pick the flower, which replies that if he does so, she will prick him and he will not forget her.  He picks her anyway and, although she pricks him, "her complaints did her no good."  Like Die Forelle, the song alludes to the dangers which lie in wait for young women, and which Mignon experiences at the hands of the Ape-man and so many other men.  

The poem was set to music by Franz Schubert and more recently, and in a starkly contrasting style, by the hard rock band Rammstein with the title Rosenrot.