Vintage jazz -- Lowes Annapolis Hotel will present "Jazz at the Powerhouse" from 8 p.m. to 10:30 p.m. today and tomorrow at 126 West St., Annapolis. PowerHouse Six will give a ragtime and Dixieland performance today, and Jazz Combo will perform swing-era classics tomorrow. Refreshments and a cash bar will be available. Admission is $20, and reservations are required. 410-269-0777.