Ultan’s single, "The Tempest," erupts not so much into the room as it does through the floorboards, dragging with it the scent of wet wool and imminent confrontation. This Dublin solo musician, a cartographer of past agonies, presents an energetic rock piece that feels less like a song about history and more like a fragment of it, throbbing and urgent. The main riff careers...

Musicians who can create magic by drawing into their origins have a certain captivating and true quality about them. Sista Mika, whose given name is Sophia Michalakoudis, is a living monument to the genuineness of that culture. Sista Mika was born in Brussels with a Greek background. She grew up to the rhythmic rhythms of rebetiko, Greece's response to blues and reggae, a lyrical story of...