When I first heard the voice of Sanni Baumgaertner at the beginning of “Mach Dich Los.” I did a double-take. I had to check and verify that Dancer Vs. Politician wasn’t the solo project of Acid House Kings female counterpart Julia Lannerheim. It, of course, is not. Baumgaertner is a native of Germany, a country with plenty of untapped pop resources.