Which composer down through history has provided the most inspiration for the composers of our time and their works? Bach? Arnold Schoenberg? Philip Glass? You just might be surprised how much Beethoven has been a boon to the music of the 20th and 21st century. As we celebrate the groundbreaking innovations of one of history's great artists on this 250th anniversary of his birth, Steve Seel has a look at how contemporary composers have taken up his themes, ideas, and melodies in their own works.