Over the course of a career that stretches back 20 years, singer-songwriter Citizen Cope (aka Clarence Greenwood) has released seven studio LPs. Though he's not a household name, his ballad “Sideways” was featured in TV soundtracks for Grey’s Anatomy and Scrubs, and his compositions have been recorded by Carlos Santana, Dido and Richie Havens. On tour to celebrate his 20th anniversary, Citizen Cope is touring with a band that includes some of the instrumentalists who played on fan-favorites like “Son’s Gonna Rise” and “Bullet and a Target.” He performs tonight at 8 at the Agora. Check the venue's website for more info.