This fall marks the 15th anniversary of the opening of Walt Disney Concert Hall. It took even longer than that for Frank Gehry’s vision to become reality, but everyone—especially the LA Phil’s Conductor Laureate Esa-Pekka Salonen—says it was worth the wait. Salonen is in town for the next two weeks conducting his own music at Walt Disney Concert Hall, including Wing on Wing—a tone-poem he wrote inspired by the hall and incorporating the voice of architect Frank Gehry.