UPDATE: The SistaStrings concert will move indoors due to the rain. It will be held in the Marcia Coles Community Room, lower level Lake Park Bistro Restaurant (3133 E. Newberry Blvd.). Enter the building from the east side, at the top of the Grand Staircase. The season ends with this Milwaukee-based duo that sister combines a classical background with R&B and a touch of gospel – delivered with thick strings harmonies between violin and cello and soulful voices. SistaStrings Facebook.