The Aussie-accen­t­ed, coun­try-tinged tones of Court­ney Bar­net­t’s songs have been float­ing over the Radio 6 music air­waves of late. Last Thurs­day was her sec­ond Lon­don appear­ance, this time at Ace Hotel, Shored­itch. Court­ney takes keeps things min­i­mal, walk­ing on stage to plug all the leads in before she’s joined by her bass play­er and drum­mer. With no…