The official Claymore OST and both the ending and opening singles (wait a few moments for the playlists to load). The torrent link can be found at the bottom:
Torrent download link: http://thepiratebay.org/tor/3821491/Claymore_Original_Soundtrack
Torrent download link: http://thepiratebay.org/tor/3821491/Claymore_Original_Soundtrack