Ave Maria by Schubert (Barbara Bonney)
https://www.youtube.com/watch?v=CM0W98t9KSU
An example: https://www.youtube.com/watch?v=hEJDJnnfRc8
And this is more of a joke video, but it shows how most of the reputation of German being harsh comes more from its typical usage in movies than anything fundamentally harsh about the language: https://www.youtube.com/watch?v=zLvL7a8Y0pI