ELPs second LP 'Tarkus' (1971) stretched their sound in new directions and dimensions, with more complex electronic keyboard sound. The title track took up the first side of the LP and ultimately defined the ELP sound - loud, bombastic and boundlessly exultant in its instrumental power. Disc One is the 24 bit / High Density 2012 remaster of original 1971 album by highly renowned rock mastering engineer Andy Pearce. Disc Two is the Steven Wilson 2012 Stereo Mix of the 2012 remaster, with bonus tracks from the original album sessions: 'Oh, My Father', 'Unknown Ballad' and an alternative take of 'Mass'. The LP is the original 1971 album, newly cut for the first time from the 24 Bit / High Density 2012 remaster, with original gatefold LP sleeve and artwork, faithfully reproduced.