Derby Festival executive director Mike Berry will talk with members of the Metro Council Tuesday.Berry is scheduled to address the Parks, Libraries, Zoo and Cultural Assets Committee about the festival. His appearance coincides with rising complaints about a change to Thunder Over Louisville seating arrangements.Pegasus Pins—which cost $4—will be required to enter a portion of the Great Lawn at Waterfront Park. Community groups and at least one council member have complained about the change, saying it's unfair for festival officials to charge visitors to sit in the park.Festival officials have said the change is meant to stop early visitors from reserving large portions of the space. Further, they say only about 10 percent of the lawn will be fenced off.