Behind The Counter Blues Week of May 13Bobby Blue BlandReflections In Blue--Beverly Records--$,' 19.99Amos MilburnGreatest Hits--Beverly Records--$,' 29.99Blues BrothersBriefcase Full Of Blues--Beverly Records--$,' 24.99Sonny Boy & Yardbirds WilliamsonSonny Boy Williamson & The Yardbirds--Beverly Records--$,' 24.99All Behind the Counter Specials >This Week's Top 50--Beverly Records--$,' 34.98Neighborhood Favs--Beverly Records--$,' 34.98Local Record Shops OnlyRSD Overstock--Beverly Records--$,' 9.99Indie Exclusives--Beverly Records--$,' 29.98Local Record Shops Only