MONDAY >> Don’t be fooled by the picture. That isn’t Trent Reznor and his ever-changing group of touring musicians. It’s Greg Dulli’s pals and labelmates Afterhours, and they’ll be playing DC9 with Cedars. Expect tons of sex, drugs, rock and roll and Italian accents. Bravissimo! $8, 8 p.m. TUESDAY >> Hailing from Derry/Donegal on the northwest coast of Ireland, Claire Sproule has been playing guitar and writing songs since she was 14. She lists Tom…