Ständchen
Ständchen is the German word for a serenade, in the form of a song addressed to a beloved. Songs with that title include:

"Ständchen" WAB 84, a song by Anton Bruckner
"Vergebliches Ständchen" ("Futile Serenade"), Op.84 No.4, a song by Johannes Brahms; see List of compositions by Johannes Brahms by opus number
"Ständchen", several songs by Franz Schubert
"Ständchen", a song by Richard Strauss

See also
de:Ständchen, in German Wikipedia
All pages with titles containing Ständchen