KOOP presents a night of up-and-coming local bands: The Rotten Mangos / Geranium Drive / The Teddys / Samson on Fri, Sep 27.  Doors at 9pm at Dozen Street with $5 cover. Then on Sat, Sep 28 at 10:30pm, catch local folk duo Little Mazarn at Stubb’s Indoors. Hear Lindsey Verrill’s twisting voice and banjo amble along over the spare sounds of Jeff Johnston’s saw bowing.