Celldweller is music you have heard and didn't even realize it. From movies, commercials, videogames etc his music is just about everywhere and for one simple reason: he is a master of musical arts.
His music has both sincerity and an orchestral genius to it. The ancient use of the word Genius fits him perfectly, it is as if he has an indwelling spirit guiding his creation towards perfection.
If Beethoven was alive today, he would be listening to Celldweller for inspiration.