John Freeman, the mastermind behind The Dooms U.K. , Telethon , Sloppyworld and too many other contributions to Dallas’ music and art history to list, is bidding adieu to the Big D at the end of August. His Dutch Treats , however, will say goodbye to the city about a month before then. The Dutch Treats perform at The Double-Wide Thursday at a birthday party for Dallas artist Cabe Booth . Ratcheting up the late ‘90s nostalgia will be Chomsky and the recently reunited Tomorrowpeople . ...