Sufjan Stevens is one of those current musicians who evidence that, contrary to some opinions, there is still hope for modern music in the begining of the XXI century. He's released a few albums, most notably Michigan and Illinoise, which deserve to be heard with great attention.
I could write many good things about Sufjan, but in music, there is nothing better the listening to realize whether you like it or not. No description or review will ever tell you if you are going to enjoy, or not, a song.
So, to put it short: Go now to this page and listen a new song from Sufjan Stevens, You are the blood, released in a compilation. This is what I call making music without fears or boundaries.