Tonight, Phish front man Trey Anastasio continues his first-ever symphonic tour at Heinz Hall in Pittsburgh, where he’ll be backed by the Pittsburgh Symphony Orchestra. PSO staff has been trying to prepare Phish fans by providing an email filled with information about what they can expect at the venue in hopes the crowd won’t be as raucous as those who hooted and hollered at last Thursday’s tour opener. The DJs for Pittsburgh radio station WDVE’s morning show had fun with the email and interpreted it for “hippies.” Take a listen to this surprisingly hilarious segment…