FRIDAY: >> Something tells us heading out to see a concert put on by a man who, due to a struggle with Hepatitis C, thought he might never be able to go on tour again will be an awfully positive, life-affirming experiece. And who couldn’t use a little of that? The Alejandro Escovedo Orchestra (he’s pictured at right) is at 9:30 Club, with Lenny Kaye & Jon Dee Graham. $25, 8 p.m. >> Film Festivals!…