Get at least one degree closer to Kevin Bacon, who along with his older sibling Michael, headline the roots-rock outfit The Bacon Brothers Band. But this isn't just a low-stakes side project. The duo's savvy mix of folk, rock, soul and country has been impressing critics and music fans alike since their 1995 debut. Now, after 20 years, the Philly natives have released eight albums, including their latest, 36 Cents. You're probably familiar with Kevin, the award-winning actor and star of Apollo 13, The Following, Footloose and dozens of other film and TV projects, but Michael's an Emmy-winning TV and film composer (The Kennedys) who's set to preview his violin concerto at this show, which is scheduled to debut later this spring with the Knickerbocker Orchestra at the Schimmel Center.