Gilrein's

802 Main St., Worcester, MA, (508) 791-2583. Open Wed. to Mon. from 6 p.m. to 2 a.m. Blues jam, hosted by Dwight Perry and Friends, every Sun. at 6 p.m. No charge. Local and national rhythm and blues and roots music (from rockabilly to blues) on Wed. through Sat. with the occasional Sun. show. Cover varies. No credit cards.

Sunday, April 29 Charles Ketter Quartet.