THE CATE BROTHERS — About twice a year, Ernie and Earl Cate join forces to lead a show with The Cate Brothers Band, a popular blues rock outfi t that went into semi-retirement several years ago. The Cate Brothers, who have deep ties to Levon Helm and The Band, will perform during the 6-8 p.m. happy hour today at George’s Majestic Lounge. Admission is $5.