The Hillsboro Village Art Walk happens on the first Thursday of the month all year long, but it seems likely that, with springtime approaching, the neighborhood shops and galleries will be expecting bigger crowds this month. And, hopefully, that means they’ll probably host more ambitious art exhibits to accompany all that spring fever. Case in point: Therely Bare, which opens today at Zeitgeist. The exhibit features non-objective art, which takes elements of traditional art composition like line, color and form, and arranges them into patterns without any additional content. It sounds like stark stuff, but this show uses the simplicity of the work to its advantage — since its limitations are so strictly defined, there is a deceptively large amount of room for interpretation, and it includes the work of 16 artists from six different countries.