BAND OF BROTHER AUTHORS: Elliott Bay Books is hosting a reading tonight by brother authors Leif and Lin Enger. According to the listing, "Both are home-state Minnesotans, both still live there, and both have the land of 10,000 lakes as the setting for their new books." 7:30 p.m. // Elliott Bay Books // Free GIRLS SINGING NIGHT: From Tucson, Ariz., Courtney Robbins' music calls to mind Erin McKeown and Eilen Jewell. If you're looking for......