Modeselektor's Happy Birthday! is a fun amalgam of the most fun elements of electronica's past, present, and future, from four-on-the-floor rave (albeit not nearly as mindless as that genre can be) to textural IDM of the Plaid/Black Dog school to bouncy hip-hop and electro jams that wouldn't sound out of place while cruisin' in your pimped-out Escalade. The stiff techno of the duo's native Germany is