Fans of ELP – whether that stands for Emerson, Lake & Palmer or Emerson, Lake & Powell – have some new compilations to look forward to this spring. Cherry Red, in partnership with Spirit of Unicorn Music, will issue Emerson, Lake & Powell’s studio and live material as Complete Collection, a 3CD set due April 12. It will include the prog trio’s self-titled 1986 album (including two CD-only bonus tracks and a single edit of “The Score”) and two self-released titles on ELP’s Manticore label: Live in Concert (recorded during the group’s U.S….