Post-harDCore has developed quite a sweep, from the performance-art faux-soul of the Make*Up to the jazzy folk-pop of Liquorice to the punchy, tuneful rock of the Dusters to the third-generation (at least) punk of Cassini Division. All four bands are playing tonight’s benefit for Foundry Housing, and since it’s a Positive Force show, it’s worthy, affordable, and open to all ages. At 6 p.m. at Foundry United Methodist Church, 16th & P Sts. NW. $5. (703) 276-9768. (Mark Jenkins)

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