By Don Heckman Los Angeles – Mar. 27. (Wed.)  Sascha’s Bloc.  A gifted group of players, many from Russia and/or Eastern European backgrounds, showcasing music that crosses easily and compellingly across lines of genre and tradition.  Led by the dynamic guitar playing of Alex (Sascha) Gershman, with the intimate vocalizing of Carina Coper.  Vibrato Grill… Read More Picks of the Week: Mar. 27 – 31.