In terms of ultimately unresolvable debates, "Beatles vs. Beach Boys" ranks near "What does it all mean?" But don't worry, baby: Even if this eternal conundrum is not satisfactorily answered tonight, how can you lose with an eclectic lineup of Triangle acts that includes the graceful husband-and-wife-led Birds and Arrows and the brainy, shape-shifting pop of Supreme Fiction, playing the finest songs of the previous century? All you need is love and an $8 suggested donation. The show is for the benefit of—no, not Mr. Kite—the Community Empowerment Fund, a Chapel Hill group that offers housing and employment to those in need. The show starts at 9 p.m. —David Klein