Gritty. Political. Immediate and visceral - all appropriate adjectives to describe Sarah Clarke's inimitable contralto voice. The versatile Portland singer has been hitting her stride with her nationally acclaimed group, Dirty Revival, and took a pause to hookup with Vintage Twin writers Dave Gulick and Johnny Clay. The results are soulful and electric, hearkening back to the sounds of Detroit and Chicago in the late '60s - with a resurgent relevance in today's volatile social climate. Get on up and get into it.