Microsoft, 343 Industries, in conjunction with soundtrack partner 7Hz Productions have announced the Halo 4 Original Soundtrack composed and produced by Neil Davidge, producer and co-composer of the last three Massive Attack albums. The OST is available online and in stores as both a standard CD, standard digital, special digital edition. The Halo 4 Original Soundtrack, featuring 15 tracks and over 75 minutes of unique music, marks the first time a new composer has taken the reins for the iconic series' musical score since the launch of the original Halo game more than a decade ago.