On May 27 at 7 p.m., the first of six Baltimore Symphony Orchestra concerts previously performed on its BSO Pulse series at Meyerhoff Symphony Hall will be rebroadcast and streamed on Maryland’s WTMD radio station. Each of the six concerts features a classical set by the orchestra followed by a set by a pop-music artist, and culminates in a collaboration between the two groups, conducted by BSO Associate Conductor Nicholas Hersh. Concerts, to air locally on 89.7 FM and stream at WTMD.org/radio, will feature collaborations with Lake Street Dive (May 27), Moon Taxi (June 3), Valerie June (June 10), The Lone Bellow (June 17), Brett Dennen (June 24), and Dr. Dog (July 1). Made possible by a grant from the Wallace Foundation, the BSO Pulse series debuted in the fall of 2015 with a performance by the folk-rock band Dawes. The project was part of the Wallace Foundation’s nationwide Building Audiences for Sustainability initiative, which was designed to strengthen audience-building efforts and develop insights to share with the field. “We are thrilled that WTMD will be sharing our Pulse concert experiences with the station’s on-air audiences again,” said BSO Vice President and General Manager Tonya McBride Robles.