Cant believe i'm going to say this but
HLN > Het nieuwsblad
http://www.hln.be/hln/nl/946/Muziek/article/detail/1655612/2013/06/20/Muse-en-de-tape-op-Werchter-tijd-om-even-te-nuanceren.dhtml?fb_action_ids=10200113119971086&fb_action_types=og.recommends&fb_source=other_multiline&action_object_map=%7B%2210200113119971086%22%3A386272461479046%7D&action_type_map=%7B%2210200113119971086%22%3A%22og.recommends%22%7D&action_ref_map=%5B%5D
I'll translate when i got time but it basicly owns het nieuwsblad his article in the face.
It says there is no playback and everything was live except for some backing tracks. But that all instruments were live basicly. Full translation when i got time