Ah, boys and girls. Something mysterious and beguiling happens when their voices come together in pairs. The boy's voice is anxious and searching, the salty to the girl's sweet; the girl's voice is simple, a warm embrace, the sweet to the boy's sour. With Catcher, the boy/girl dynamic is well represented, but somehow it comes off lonelier than usual. The two voices intermingle, to be sure, but they sound lost: the boy and the girl at once together and separate, missing and badly needing one another. The songs of Catcher sound like that point deep in a relationship when you start to see the seams; you can feel the end drawing nearer, and begin to pull away from each other - just at the point where you need that embrace more than ever.

[The Den @ urbanXchange, with A Cozy Kitchen, Smile Brigade, 7 p.m., all ages, $5, 1932 Pacific Ave., Tacoma, 253.572.2280]