This is
The Urine Song (yes, that's right) by Sopor Aeternus - my current musical obsession from Germany (where else) I love this, it reminds me of the work of Kurt Weill and Bertold Brecht during the Weimar Republic (1918 - 1933) - a golden era of the avante garde.
https://www.youtube.com/watch?v=q66qDg_n0u4