Tickets for MerleFest 2004, the huge annual music festival held in Wilkesboro, N.C., go on sale Tuesday (Nov. 11). Acts scheduled for the event, to be held April 29-May 2, include Sam Bush, Rosanne Cash, the Derailers, Vince Gill, Patty Loveless, Nickel Creek, Earl Scruggs, Doc Watson, Gillian Welch, Lucinda Williams and Kelly Willis & Bruce Robison. Single-day passes start at $30, and four-day passes start at $110. 11/11/03