This week, two fairs gamble on unpredictability to help break up the monotony. The more ambitious, Spring/Break Art Show, offers shake-it-all-up collaborations between artists and curators, while Volta is a mixed bag, but with a strong streak of playful abstraction. Although very different from each other, both lack the blue-chip sheen of bigger outlets like the Art Show at the Park Avenue Armory. They can’t give you a flawless experience but that’s OK. They make you put in a little extra legwork to find something you love. Consider the possibilities.