The timeless music of Pyotr Ilyich Tchaikovsky will accompany the classic ballet “Swan Lake” at the University of Georgia Performing Arts Center next week. About 50 dancers from the State Ballet Theatre of Russia will perform the full-length story ballet, complete with elaborate sets and costumes, at 8 p.m. Jan. 13 and 14 in the Fine Arts Theatre. Tickets are $52 and $62 and are discounted for UGA students.