The New York Times contemporary composers blog has resumed with a post by Michael Gordon on his work that uses themes from Beethoven:
Perhaps the most interesting interaction with classical music that I’ve had was a commission from the Beethoven Festival in Bonn, Germany, to write a new piece for orchestra that referenced Beethoven in some way. It was a challenging request and for a while I wasn’t sure how to proceed. In the end, I decided to take one theme from each movement of Beethoven’s Seventh Symphony and work with them as if they were my own.
Includes a streamed excerpt, although I can't conclude anything on first listen. Via Mark Chan.