“A bunch of European composers who haven’t had a hit in decades have been very, very good to radio station WETA. Since dropping news and talk programming for classical music in January, the Arlington public station has seen its fortunes soar. Ratings have more than doubled since the switchover from BBC and NPR reports to Bach and Brahms concertos. And perhaps just as important to WETA (90.9 FM), pledge contributions from listeners have been gushing.”