Blues — it's what Baton Rouge does, baby. Start the weekend off with a performance from a versatile modern bluesman. Alvin Youngblood Hart performs with his band Muscle Theory on Friday at Mid City Ballroom (136 S. Acadian Thruway). The show starts at 7 p.m. with an opening performance from Chris LeBlanc. Tickets are $10. midcityballroom.com.