Australian singer/songwriter Harmony Byrne has played SXSW, a national tour with The Teskey Brothers, precluding a period of isolation where Byrne recorded an intimate, acoustic E.P in her home studio, entitled The Songs I Sing When No One Is Listening. If you’re after a powerful voice that can both devastate with muscular ferocity and affirm with skilled restraint you may want to watch out for this cracker of a fire. Come catch Harmony play at OKPS.