In June, local violin virtuoso Rachell Wong will perform Shostakovich’s Violin Concerto No. 1. Tchaikovsky’s Fourth Symphony erupts with a fanfare for brass that is moody like Shostakovich’s concerto. As the symphony unfolds, however, gaiety and excitement hold court. Perhaps his most famous symphony, Tchaikovsky’s spectacular Fourth will end BSO’s 2017-2018 Season with a flourish.