Marcel Dettmann brings three decades of DJing nous to Running Back's Mastermix series, curating a 3xLP compilation of long-time secret weapons and prized edits, many afore unreleased. Not to tune into the legacy of a single club as earlier Mastermix volumes have done, Dettmann turns the focus inward, drawing on his personal archive of tailored tweaks and floor-tested reworks. Raised in the former GDR and immersed in Berlin's post-unification underground, his early grounding in post-punk and industrial music still echoes throughout these selections, ranging from Cristian Vogel's 'Untitled' (1995) to fresh flips of Yello, Nitzer Ebb and K-Alexi Shelby. Also included are edits of Experimental Products, Severed Heads and Ian North, plus a closing pass at Conrad Schnitzler's 'Das Tier' that threads everything back to Berlin's anarchic, bank vault-raiding sensibility.