Just by the way, Mat, Offenbach has already been used. In 2006.
And "Z" is no biggie, marval.
There's at least three Zimmermann's to choose from. None of which has been used.
Not to mention....
So, hmmm. Why not Berndt Alois, then.
Berndt Alois Zimmermann. 1918-1970. A very various composer. Which puts us back to "N" again. Pfffft.