Effervescent percussion—a ripple of xylophone here, ebullient handclaps there—propels Yuna’s 2013 breakthrough, a delectable confection of luminous, soulful pop. The singer/songwriter deftly maps the emotional nuances of relationships (apprehensive infatuation on the giddy “Come Back”; yearning on the moody “Mountains”), tracing peaks and valleys with her radiant voice.