Busca una Mujer is all about the synthesizer—or more specifically, the way Miguel and the synthesizer play off one another, summoning a melancholic haze from the embers of old affairs. On the devotional “La Incondicional,” keys and strings swell until they engulf not just the singer, but the listener too. Meanwhile, the upbeat “Separados” pulses with an unexpectedly buoyant uptempo groove, resulting in the kind of song that can get a whole arena dancing.