The A-Beez.

Thursday, May 2

Bayside Bowl (58 Alder St., Portland) is throwing a party to celebrate the opening of the rooftop bar, and soulful Boston R&B act The A-Beez will be serving the funk at 7 p.m. Free (all ages). 791-2695. baysidebowl.com. At Portland Stage’s Studio Theater (25 Forest Ave.), Acorn Productions’ annual Maine Playwrights Festival premieres six short productions, including work by teenage playwrights, through May 4; tonight at 7:30 p.m. Tix: $20 ($18 students and seniors). 828-5200. acorn-productions.org.