“Washington, D.C.'s 1432 R label launched earlier this year with a record by an Ethopian artist, Mikael Seifu, that fused techno and ambient tropes with percussion and vocals from his native country. He's back on the label's second release with "Tuff Ruff", an even more seamless merger of Ethiopian elements with Western club rhythms. But the record's flipside suggests that 1432 R isn't turning a bl”