The Seattle Symphony is in the market for a new concertmaster, following music director Gerard Schwarz’s decision to fire Finnish violinist Ilkka Talvi, who had held the post for two decades, and a mind-boggling sixteen candidates have been invited to sit in the orchestra’s first chair before a decision is made. But there’s a lot more to winning the one of the more coveted positions in the orchestral business than just being a top-notch violinist…