Often the brightest lights emanate from the biggest cities. My Dry Wet Mess, a.k.a. Giovanni Civitenga, 27, has spent his life in two giants: Rome and Barcelona, but his sound might be easily confused with two others: Los Angeles and London. Equal parts slack Beats and gauzy Bass, Boom and Slo-Synth, Gio's music goes beyond sound effects to express emotion through the prism of melody. In this realm some call Luvstep or Purple or Wonky, where the guidelines are still being set, young voices can elude easy definition.