You may also enjoy the work of Max Richter although some of his compositions can push toward experimental. I am just beginning to explore modern classical/avant garde and it seems it is a genre rich with incredibly talented artists like Arvo Part.
A couple of other modern classical records I really enjoy are Richard Skelton's Marking Time (Preservation) and the work of Olafur Arnalds, check out And They Have Escaped The Weight Of Darkness (Erased Tape Records).
A couple of other modern classical records I really enjoy are Richard Skelton's Marking Time (Preservation) and the work of Olafur Arnalds, check out And They Have Escaped The Weight Of Darkness (Erased Tape Records).