Not content with signings of the late Jóhann Jóhannsson, Max Richter, Hildur Guðnadóttir, Dustin O’Halloran (can Adam Bryanbaum Wiltzie be far behind?), and Rachel Grimes (Rachel’s), Deutsche Grammophon’s drive to world domination continues with the scheduled March 20 release of a new album by Brian Eno and Roger Eno.