Now it's my turn to ask a question. I was listening to a german "Schlager" and in the concluding passage there was a flute motif that sounded so familiar. I have a hunch it's a quotation from some classical piece, but I can't remember which one. Any idea as to what it could be?
https://www.youtube.com/watch?v=4LctCe_QRXg&t=2m32s