“Mas Ysa is still a very new act, and so most of the discussion about Thomas Arseneault has to rely on reference points. He's opened for Deerhunter and RZA, and there's precedent for certain sonic aspects of his intriguing EP, Worth—the polished, dramatic synth-pop of Future Islands, quavering vocals that put a Xiu Xiu-esque chokehold on your attention, M83's rocket-fueled dynamics. "Shame" is the ”