As any fan of Swedish music already knows, Swedes speak amazingly good English and they sing it pretty nicely, too. So, why should we be surprised that they can also rock the American roots music? That's exactly what Vastervik, Sweden's The Abalone Dots do and do quite well. You can hear for yourself when the quartet of talented women plays at 8 p.m. on Saturday, Sept. 4 at Shank Hall.